The murders start with the body of Robin. He is found with a arrow through the heart, but Vance deduces that the body was placed and not found where he was killed. The note found dealing with the murder was part of a nursery rhyme and signed by 'Bishop'. The only witness may have been Mrs. Drukker and Adolph, but they are not talking. As the murders progress, each one is accompanied by a nursery rhyme. It is up to Philo Vance to unravel the clues and unmask the identity of the murderer 'Bishop'.

Sedgewick Blynn is determined to marry a rich woman. One night he saves a child from a fire. Bessie Morgan, an heiress charmed by his act of heroism, promises to marry him, but at the last minute her father forbids it. Soon after, Blynn receives a telegram informing him of the death of his mother, and he realizes that he has wasted his life.

An ambitious shoe salesman, Harold, unknowingly meets the boss' daughter and tells her he is a leather tycoon. The rest of the film he spends hiding his true circumstances, in the store and later on a ship. Trying to deliver a letter, he later finds himself dangling high above the street on a building's scaffolding.