一条小鱼本来在自由自在地觅食，却在无意中目睹了一场水鬼对其它海洋生物的残忍猎杀。而就在水鬼和这条小鱼四目相对的刹那，一场疯狂的追杀就此开始…… 水鬼，是对海洋潜捕人员的俗称，他们当然是人，但对躲避在礁石与水草中的鱼虾蟹贝而言，可谓真正的魔鬼。

A little fish was looking for food freely, but inadvertently witnessed cruel hunting of other marine creatures by a capture fisherman. And at the moment when the capture fisherman and this little fish face each other, a crazy hunt begins… Underwater monster is the common name for capture fisherman. Of course, they are humans, but to marine creatures hiding in rocks and water plants, they can be described as real monsters.