Scott, Joe and Suzie are attending University in Brighton. Psychology student Scott comes in contact with Rich Bitch through a chat room. When they meet up she is a fellow student called Charlie who seduces him and beds him then vanishes.
The flatmates begin playing the CD-ROM game Killer Net. Scott plans the perfect murder and chooses his own victim, Charlie. When Charlie is found murdered, Scott gets arrested and he learns the method he used in the game mirrors real life.
Scott attempts to recreate Killer Net but Charlie is no longer in the game. WPC Pam Boxer offers to be the victim unaware that someone is watching. Things become sinister when the police get a threatening email from a user named Dome.
With Scott on remand for Charlie's murder, the police try to build evidence against him, but at least one officer believes he's innocent. When Joe's girlfriend catches Joe in a lie, she starts to suspect him.
