Bernie is insistent that Greta marry him so Peter tells him she is seeing another man. He confides in sister Bernice who encourages him not to give up. Mr. Brahms has asked Greta to help him shop for an anniversary present for Mrs. Brahms. Bernie and Bernice see them and assume Mr. Brahms is Greta's sugar daddy. Then they see Greta dressed in mink meeting Mr. Brahms at a bar. Bernie hears where they are going to meet, a hotel room that has actually been rented for a surprise party, and gets there first. He attacks Peter when he enters and Bernie is knocked out in the struggle and hidden in the closet. Greta and Peter spend the evening guarding the closet. Bernie later pops out singing ""Happy Anniversary"". The man-in-the-middle is having a party.