In this entry in the long-running British comedy series, boisterous Irish washerwoman Mother Riley is placed in charge of a hotel after the owner decides to take a much needed vacation after he is repeatedly robbed. Unfortunately, under Riley's helm, the hotel is robbed again, and this time the blame is placed on her and she must go to prison. After a large prison pie-fight, Mother Riley is finally released. In Britain this film is titled Old Mother Riley's New Venture.