After several bodies are discovered floating beneath Sydney Harbour Bridge, Detective Guy Shayd and his colleague Bob Lawson are tasked with uncovering the identity of the murderer. As the body count rises, Guy turns to his girlfriend Kay, who has psychic abilities, for help in tracking down the culprit.

Amid the chaos of the investigation, Kay and her cousin Stevie are busy preparing for their weddings to Guy and Bob, and both women discover they are pregnant, adding even more urgency to the case. The stakes are raised even higher when Kay and Stevie are kidnapped and held captive.

As Guy and Bob race against time to find their missing fiancées and solve the murders, they uncover a shocking twist. The true identity of the killer turns out to be far more unbelievable than they ever expected.