In this atmospheric and underrated mystery, three suitors converge on a castle to seek the hand of a young woman (Gloria Stuart). There’s a door at the estate that has been locked for many years; when asked about it, the girl’s father (Lionel Atwill) explains that the blue room was the scene of three strange deaths. In a show of bravery, the young men each volunteer to spend a night there – but they don’t all make it to the morning.