Dr. Crippen
Starring Donald Pleasence, Coral Browne, Samantha Eggar, Donald Wolfit, James Robertson Justice, Geoffrey Toone, Douglas Bradley-Smith, Olga Lindo, Elspeth March, Paul Carpenter
It's a crime and drama movie, and has a rating of 6.3 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Germany.