Occasionally clever little early 30s multiple-murder mystery, with a killer stalking the Kennedy household and knocking off a half dozen victims. The cops don't seem especially perturbed by the continual corpses lying around and aren't very good at getting to the bottom of the mystery. Lots of telephone cord cutting and such; good example of how the telephone became the mystery writer's best friend.
The plot concerns a letter fingering the killer, which comes to light after a game of charades goes bad (after seeing this and The Death Kiss, I have some advice: do not agree to be shot by a gun filled with blanks during the 1930s). The head of the household, maid, the butler, and who-knows-who-else also fall victim to the clever murderer bent on getting his hands on the letter.
The acting is stagy and old-fashioned, but occasionally sharp and witty, and Alice White as the house maid Millie is a doe-eye peach. An absence of music makes this seem rather duller than it should be. It's okay if you like the genre and era, but it's not something to seek out.