The Detective duo investigate a killing that is latest in a string of crimes in the red-light district. Off duty, Hutch is getting serious with his new girl-friend, the classy Gillian, but as the intreptid Detectives investigate the killing, Starsky by chance finds that Hutch's new love is a prostitute.

The streetwise cops are disgruntled when they are assigned to have a newspaper journalist accompany them for a couple of days, until they learn that the reporter is an attractive woman. As they try to trace a drug supplier who is poisoning the narcotics he pushes, the pair go all out to impress the reporter, but when she misunderstands their often unorthodox Policing methods, the woman writes a very unfavorable article about them...