Mickey Spillane's Mike Hammer - Season 2 Episode 15 : When I Am Dead, My Darling... 1959

Mike, vacationing in France, is asked to help a pretty American widow who is traveling on the ocean liner "Isle de France". The woman claims to see her dead husband everywhere, but the ships' officers think she is slowing going insane with grief. Mike agrees with their diagnosis until he sees the "ghost" try to throw the widow overboard; he then races against time to capture the all-to-real spirit before he can finish the job.