Mr. Mush tells his son that if he marries and settles down he will get $500 to start. Percy's friend makes up as a girl and is introduced as his bride. The happy couple in their new home are surprised by a visit from Percy's sister and her friend, at sight of whom the bride becomes a man again and makes a hasty exit. Percy chases and captures him. Returning to the apartment, they are confronted by Mr. and Mrs. Mush, who have discovered the trick, but father has been flirting with the bride, and to get himself out of a compromising situation he has to consent to a double wedding.