Siu Keung is a cockroach living in a kitchen. One day he finds a leftover fish head which he thinks is funny, so he makes it his playmate. He puts the fish head on a jar of pesticide, but it disappears the next day. Feeling heartbroken, he seeks help from his friends and starts a journey of searching ...
一天，生活在廚房的小強（蟑螂）發現一個人類吃剩的魚頭。它誤以為魚頭向他微笑示好，便把魚頭帶回家作自己的玩伴，還把魚頭安置在一瓶殺蟲劑上。隔天，小強發現魚頭不見了，傷心欲絕，叫來朋友們一起踏上尋找魚頭的旅程……
