Dr. Judd Stevens, M.D., is a caring and successful Manhattan psychoanalyst who must face a horrific prospect; someone is trying to kill him. First, John Hanson, a patient trying to overcome his homosexuality, is murdered. Not long after, Carol Roberts, Stevens' secretary, is found tortured to death. Two police officers, Andrew McGreavy and Frank Angeli, are quick to treat Stevens as the prime suspect, partly due to McGreavy's anger over Stevens' testimony in a previous case. Stevens is later run down by a car, and following his recovery, two men in dark try to kill him in his office.