Criterion Film Productions Ltd.

A former boxing champion, now an innkeeper, is accused of stealing a watch from a party of guests at his inn, who happen to be members of English royalty. The old man is arrested and thrown in prison. His son, knowing that his father didn't steal the watch and suspecting a frame-up, follows the royal party to London, where he poses as a wealthy "gentleman" and insinuates himself into the English court in an effort to find out who framed his father and why.

Tony and his dance partner/wife Gaby headline a Paris musical. Tony becomes the unwilling target for the attentions of performer Yvette. She is later murdered with the dagger used by Tony and his wife in their act, and Gaby is accused of the crime.

With the police on their tail, a gang of New York criminals decided to relocate to London where they plan a major robbery on a department store.