While Starsky, Hutch and Officer Linda Baylor are working on an operation to trap a wanted drug dealer, Hutch receives a minor wound, and reports to hospital, where he meets nurse Diana Harmon. After they meet later at a bar, they spend a romantic evening together. But when afterwards Hutch, concerned by her possessive ways, doesn't plan to continue with the relationship, Diana starts displaying unbalanced, obsessive behaviour that not only jeopardises the Police operation, but puts Hutch in great danger...