Triptych

When a stranger enters a quiet, country town and is seduced by a sensuous married woman he unwittingly finds himself at the centre of a storm of sexual guilt and murder.

Federal agent Alexandra Barnes believes that Catherine Petersen is a serial killer who marries rich men and then murders them for their money. But since Catherine is seemingly a master of disguise and has multiple identities, Alexandra can't prove anything with conventional detective work. With no other option, she goes undercover, pursuing the same man as Catherine, and hoping that Catherine will slip up and reveal her true identity.

A routine investigation of a shocking murder takes a bizarre twist when the killer contacts the reporter and appoints him his personal spokesman. As the killer's calls and clues increase, the reporter is lured into a deadly trap.

A sister and her disturbed twin are implicated in a murder and a police detective must figure out which one's the killer.