Serena lands on the front page of the morning news, which lands Darrin in a lot of trouble with the Tates. Darrin tries to convince the Tates that the photo is Samantha's cousin Serena. But when Darrin makes matters worse by insulting her, she decides to teach him a lesson.

Aunt Clara's boyfriend Ockie has a castle that is haunted by a most disagreeable ghost. Samantha goes to England to help him and runs into her vacationing in-laws. After the ghost leaves he takes up residence in the Stephens' house.