When Dick discovers Mary has slept with Strudwick in the past, he decides the best revenge is to sleep with Strudwick's wife. Meanwhile, Sally gets the hots for Don after he starts riding a police motorbike, but the pair crash and Don ends up in full body plaster.

Mary invites the Solomon's to attend a interactive murder mystery, she then gets sick before the show starts and Dick and the rest of the family believe that there really has been a murder.