Gian Murder Case is the 15th chapter of Doraemon Volume 39. It was adapted into The Police Dog Nose in the 1979 anime series and The Targeted Gian in the 2005 anime series.
Doraemon and Nobita are having a usual quiet day walking on the street until they hear Gian practicing for his concert from the Open Lot. While Nobita suggests them to take other route, Doraemon instead persuades him to just rush across the lot while shutting off their eyes and ears, which unfortunately leads them to become the audience for Gian's practice. As they listen to the atrocity, Nobita wonders why Gian is unaffected by his own song, which Doraemon tactically replies that "a pufferfish is immune to its own poison". Fortunately, a man appears to stop the practice and instead persuade Gian to record his song for him. After the man has left, Gian reveals to the two that the man is in fact a vice-principal to the famous Grand Prix Music School, and he has come to scout him to be the new star, leaving the two flabbergasted by the event.
After Shizuka and Suneo are told about what has transpired, the latter concocts a theory behind this strange event: the Perfect Murder Case. The murder would be carried out by the vice-principal by having the principal's listens to the recorded song every night. Though there might be no effect at first, the culminating poisonous song will eventually take his life and the vice-principal can easily take over the school with the police being none the wiser due to lack of evidence. Suneo names this "Gian Murder Case", terrifying Nobita, Doraemon, and Shizuka, though Suneo quickly changes the topic once Gian appears with his "Weight-Reducing Paint Roller" to prepare to become a star.
Still worrying about Suneo's theory, Doraemon and Nobita use "Police Dog Nose" to find the location of Grand Prix Music School, discovering that the school is in fact in a dire financial and reputational problem. Using the "Invincible Mantle", the two sneak inside the building and listen to the vice-principal and the principal's conversation. Much to their relief, the vice-principal and the principal are actually planning to use Gian's singing voice to advertise their school by having another boy with similar voice (but better at singing) to perform and advertise these as singing "before and after" entering their school. Though glad that there is no murder case, Doraemon and Nobita are left wondering whether to tell Gian about the fact that he won't become a star anytime soon.
Home is further and further away • About Molting • Advertising with the Mirror • Mood Ban's Performance • Calling Collar • Telepathy Microphone • Secret Passage Pen • Boastful Ancestor • Typhoon Generator • Escape from Home for Uninhabited Island • Minicar Driving School • The Lazy Day • Riding a Ball • Nice Mii-chan • Into the wrong way! • Cannibal House • Alien House? • Swimming pool in clouds • The war of radio-controlled boats • Grandpa in the dream
Dream Channels • Cat Runs a Company • Treasure of Chinkara Peak • Door Out Of Nothing • Switching Rope • Chain Letter Syndicate • Almighty Pass • Catching the villain with Time Machine • Peeking Camera • Railroad Crossing Kit • Redo Life Machine • Rank Badges • Dictator Switch • Copy Gun • The Expression Controller • Collecting sound pollution in a can • Portable Parliament • World of Cat's Cradle
Special screening at Nobita's room • Thrilling Boomerang • Bias Badge • Spying with Spy Satellite • Swimming pool in the room • The small house in an iceberg • Nobita running to Kyushu!! • Fruit of telepathy • Driving the vacuum cleaner • Automatic pawn shop • Maze House • Real Cap • Planet of happiness • That day • Komon Candy • Girlfriend Catalogue • Future Checkbook • Sandman in a sleepless night • Hundred Painful Timers • The Dandelion goes to the sky
Skiing Without Snow • Radish Promenade • Japan is So Large • Hight Responsibility Amulet • Dinosaurs Appear • Alone in the Future World • Arrogant Nobita • Pleasure in a Small House • Go! Go! Nobitaman • Dracula Set • Happy Walking • Memory Camera Man • Finding Mother for Three Thousand Kilometres • Emulating Tool • Santa Mail • Spirit Calling Bracelet
The Mecha Maker • Winning Camera • Operation: Sleeping Dekisugi • Education Candy • Getting Hurt Without an Accident • Jaiko's Fan is Nobita • Full Speed Ahead With the Radio Controlled Simulator • Devil Card • Blue Bird of Happiness • The Suicude Squad for Saving Nobita • The Time Machine is lost! • Stale Picture Mirror • Supposing Medicine • Tax Bird • A Comfortable Hot Bath with the Hot Bath Rope • Stray Dog Ichi's Country
Fourth Dimensional House Block • Nobita's Training • Doraemon in love • Cuckoo Egg • Body Dividing Mallet • Let's ride the insect plane • The thin and long friend • Decision Timescope • Polarmap and Camera • Human Cover • Career Armband • Real Game Player • Nobita has only one • □ ○ Phobia • Have a good Dream, Gian and Suneo • A world without mirror • 10-minute late esper • The Fearsome Happiness Cards
Transforming Capsule • Horizon Tape • Brother Sticker • Switching House Tag • Each punch worths hundred yen • Famous with the New Species Scrapbook • Shizuka's Secret • Ninja Training Set • Dream Stairs • Why is the play chaos? • Suneo's Test Paper, Danger! • Artist Tag • Nobita Airline • The God Robot • Symbol Order Machine • Model of 100 Jyo Island • Pearl Producing Chest
Into the 3D Giant Screen • Nobita can be also a genius? • Fishing Pond for Things You Dropped • Rebuild the old Hotel • The Realest 3D Picture • Video Remote • Feather Plane • Nobi's has no gravity • Everything Airport • Time Zone Clock • Suneo's Bottom is lost • Cinderella Nobita • Billionaire Nobita • Wanted Person Finder • Mincing Robot • Let's Read Lusciously • Continuous Imagination Magnifying Glass • Good Bye Shizuka
Flying Through the Sky on the Letter "ワ" • Eskimo Water • Crowded Antenna • Superhero Set • Being the artist with Vision Beret • Magic Without Secret • One-day Persimmon Fruiting • Flowing Time • Bringing Raing Man Making Trouble • Automatic Delivery Label • Spirit Blowing Gun • Commanding Credit Card • Transform, Transform, and Transform| • Sometimes Nobita can repent • Earthquake Training Paper • Daydreaming on the Clouds • Pirarucu in the Puddle
Sending the Secret with the cannon • Microphone Typewriter • Sound Reflecting Mountain Making Trouble at Late Night • Slacker's New Year Set • Slope Gear • Model Chicken and Egg • Reversing Mistakes • Muriyari Cash Card • The Sweet House with Shizuka • Machine for Getting Off the Earth • Hot Letter to Gian • Obligation Potion • Give Doraemon a Break • Clay Robot • Everything is Doll • Winding System Subterranean Ship • Pretending Devil Water • Typhoon Gian is Approaching • Hoi of Donjara Village
Shiny Night Sky • Sigh! Gian's Concert Again • Clock Hatched from an Egg • Dream Player • Sleeping Annoying People • Converting Gun • Revenge Bill • Friend Circle • Conformed Lying Story • Danger Prevention Sticker • Sleeping Doing Case • Adventure Game Book • Way of Using the Banana Leaf • Convenient Rod • Collecting Matsutake in the Box Garden • Lonely Drink • Stone Age Hotel • Freezing Light • Suneo's Incredible Fort
Wonderland Tickets • Nobita becomes a god • Memory Disk • Handicap • Ten Commandments Stone • Thickness Removal Pin • Transportation Shoes • Just Honne • Handmade Clouds are so fun • Secret Passage Pen • Mentalist Hat • Balloon Letter • Moving Stick • 4D Rookie Driver Sticker • There is a Spirit in the Cushion!! • Gian Murder Case • Nobita's Model Railway • Robinson Crusoe Set • Clockwork Typhoon • Factual Convertion Machine • Rainbow Violeta
Country Maker • Teacher is coming again • Swapping Glove • Haunted Tincture • Fairytale Eggs • Looks, Strength, or IQ? • Willing not to be back to the normal boy • Correspondent Robot • Free Size Doll Camera • Typhoon Trap and Wind Storage • Diligent with Nature Screen • Blind Spot Star • Time Room and the Persimmon Tree in the past • Suneo is the Ideal Big Brother • Mini Hot Air Balloon • Human Piggy Bank Maker • Flying Comic Books • Jaiko, Please Don't Cry • Get Shizuka Back
Switching Gun • Broadcasting Picture Book • Furious Time • Ten-yen Store • Gian in love • People's fate cannot be known • Deliveryman Cap • Anime Box • Upgrade me • Nobita's Good Scene • The War of the Hanmade Missiles • Do you know about hunger sufferance? • Found the Dinosaur's Footprint • Insect Attraction Board • Balance Cushion • Season Cans • New Jaiko's Manga • Hawaii is Coming • Cutting the part of the Sea • The Treasure Planet • White Hole Pen and Black Hole Pen
Life Ring Pipe • Doraemon is Badly Ill • Super Power Lung Pump Gas • Southern Sea Adventure • Nature Observing Toy Set • 4D Trashcan • Battle of Bottle Ship • Time Skipping Pulley • Human Sugoroku • Represent Paper Doll • No matter it happens I am watching the bloom flowers • Horrible Contagious Diseases • Map Syringe • Body Dissolver • The Man who comes from Garapa Planet
