After shooting a homicidal teen during a hold-up Starsky is cleared of any wrongdoing. But, when fellow policemen are being murdered by a killer out to punish Starsky, he feels responsible and takes immediate action.

Concluding this feature-length / two-part story. Still undercover at the lush resort of Playboy Island, Starsky and Hutch must find out who is behind the voodoo murders and why, but as they look into the strange goings-on surrounding billionaire recluse William Thorne, they find themselves battling the black magic of a powerful witch doctor...