A gorgeous young model is bludgeoned to death in her downtown Toronto apartment. The wounds to her head are so severe police initially presume she's been shot. Evidence at the scene suggests to detectives that the killer gained access to his victim by posing as a telephone repairman.

A Girl Guide leader is found dead in her home on the floor of her bedroom. As there is no obvious cause of death, police are suspicious. When an autopsy reveals a small bullet lodged within the victim's brain with an entry wound through the left eye, detectives learn they're investigating a murder.