The Unholy Four Synopsis & Summary

Four friends go on a friendly fishing trip but only three return. This suspenseful drama chronicles the fate of the fourth who returns home an amnesiac after a three year absence to get revenge upon the "buddy" who knocked him out and left him to die. Any one of the remaining three could be a suspect as all of them are interested in pursuing his lovely widow. Unfortunately, the man's return coincides with a murder and he ends up blamed. Fortunately, his wife helps him solve the mystery and clear his name. The British title was A Stranger Came Home. - Sandra Brennan, All Movie Guide