The Late Edwina Black (aka Obsessed) (1951)

When his domineering wife dies suddenly, it proves a relief to her husband (David Farrar) and live in companion (Geraldine Fitzgerald) who are lovers. Now, they can live openly. But when it turns out the wife was poisoned, it casts suspicion on the couple. Not only that but it puts a wedge between them when each suspects the other of the wife's death. Based on the play by William Dinner and William Morum and directed by Maurice Elvey (A ROMANCE IN FLANDERS). The film doesn't bother to hide its theatrical origins. With only four main characters and the house the only set, it feels like a filmed play and the performances are very theatrical as if playing to the balcony. Geraldine Fitzgerald and David Farrar are normally very natural actors so I give the blame for their exaggerated performances to director Elvey. For a "whodunit", it's a lot of talk, talk, talk. While the solution to the crime is very well done, the journey there is quite tedious. With Roland Culver and Jean Cadell.