"The Murky Magroo." Half-man, half-fish. The town of Hecksville legend has it the creature is a reincarnated serial killer. Jack and Josh Waters, a couple city slickers, have never been to this quaint little town, nor have they heard of the horrors that await them. . . until now. Jack, a male nurse, brings his opposite brother, a car mechanic, to Dr. Grover's lake house party where Jack plans to work up the courage to ask out Amy Rivers, a sexy nurse who works in his unit. There Jack's OCD really kicks in when he discovers he has an even bigger problem than his womanizing slob of an older brother: a monster that swims the murky lakes by day and creeps out at night to stalk it's prey.