Alfred Hitchcock Presents S07E08 - The Old Pro

Loretta Burns is under the mistaken impression that her husband Frank is really a former engineer. Frank is actually a retired hit man. When a man threatens to tell Loretta about Frank's past, Frank kills him and his partner. Hearing the news Frank's ex-boss insists that Frank return to work. He tell Frank that if he doesn't his wife may end up getting rubbed out.