Kolchak: The Night Stalker (1974)

S1E14 The Trevi Collection

A fashion industry spy meets a grisly end when he is thrown from a room packed with mannequins, and Carl witnesses the shocking event from the street below. This murder is just the beginning of a series of bizarre killings that hint at a supernatural cause: Madame Trevi, a top designer, is rumored to be using witchcraft against her rivals. With the help of a coven, Carl uncovers the source of Trevi’s dark powers and destroys it, only to realize her true identity. Armed with a mojo bag, Carl must confront and expose the witch to weaken her influence.