Perch of the Devil is about the hard rock miners of Butte, Montana, and the strike of copper miners in l959. The film reviews the history of the Mine, Mill and Smelter Workers Local Union No. 1 and the many violent struggles that have happened in the mining camps of the western Rockies. There are interviews with miners, and with victims of silicosis, a fatal lung disease among miners. The film also contains footage of mining operations in tunnels a mile below the surface.
In Frankfurt, the G.I. Tulsa McLean (Elvis Presley) bets all the money his friends Cookie (Robert Ivers) and Rick (James Douglas) and he are saving to buy a night-club of their own in USA that his mate Dynamite will seduce and spend a night with the untouchable cabaret dancer Lili (Juliet Prowse).
Charlie Kohler is a piano player in a bar. The waitress Lena is in love with him. One of Charlie's brother, Chico, a crook, takes refuge in the bar because he is chased by two gangsters, Momo and Ernest.
Based on the successful 1956 Broadway production of the same name by Betty Comden, Adolph Green, and Jule Styne, the film focuses on Ella Peterson, who works in the basement office of Susanswerphone, a telephone answering service.