Craig Stevens stars as a young attorney named Peter Thorne. He works for a very eccentric elderly woman who has a most unique plot planned to use against those who stand to inherit money from her estate.
Lorinda Channing (Cecil Cunningham) plans to use her insane brother whom she helped escape from as asylum after 10 years, to scare the inheritors and teach them a lesson. The brother is John Channing (Milton Parsons).
All of the people arrive at the mansion and Lorinda has a difficult time controlling her brother who really wants to kill people. The plot is full of twists and turns in this very entertaining Warner feature.
It's not by any means original because of the "old dark house" theme, but it is fun. Parsons is excellent is his role as the insane John. He always had a very recognizable face and was a character actor in hundreds of movies and TV shows.
The rest of the cast for this whodunnit includes Elisabeth Fraser, Willie Best, Frank Wilcox and Julie Bishop. The print from Warner Archive is beautiful and I can recommend this to any horror/mystery fan. Willie Best has some great scenes as the always scared butler whose food trays are disappearing at an alarming rate.