When Charlie sees his smug,competitive tennis partner Fred make a pass at Caroline he is angry and plays him hard on the court. Fred drops down dead and Charlie feels guilty so that when Fred's identical twin,the seemingly nice Ted,arrives but starts to take advantage of Charlie's guilt,the resentment starts over again. A trip to see the Catholic priest puts things in perspective - though not until after Charlie has also thrashed Ted on the tennis court (thetvdb.com)