by Hal Erickson
synopsis
Several people overhear a phoned-in murder threat aimed at prominent ecologist Kenneth Krug (Eric Braeden). The caller seems to be a hooker with whom Krug is having an affair--and after a bloody shoot-out, it appears as if the woman has carried out her threat, even though no body is found. Investigating, Kojak (Telly Savalas) begins to suspect that the elusive "hooker" does not exist, and that the murderer was actually Krug's scheming wife Carol (Susan Sullivan).
