Allen and Keaton still have excellent chemistry as Mr. and Mrs. Lipton! Each is worried the other is falling for someone else though. They meet Mr. and Mrs. House, a neighboring older couple down the hall. Shortly after, Mrs. House is dead. Keaton immediately begins suspecting that something is not right with Mr. House’s way of going on with his life. Allen’s delivery of one liners and neurotic manner serve him well, since he wants nothing to do with inventing elaborate explanations for how Mrs. House might really have died. The Lipton’s mutual friend, Ted, played by Alda is Keaton’s confidant. Keaton and Alda, who is a writer and fancies himself a kind of Humphrey Bogart, have vivid imaginations and find it thrilling in this part of their lives to play detectives. Well, it is not all in Keaton’s head. Huston is another writer who is having a book published by Allen and on a double date she too helps figure out how to catch the murderer. Jerry Adler as Mr. House channels Raymond Burr from Rear Window well. It is obvious with one Woody Allen picture after another that he loves and respects other classic filmmakers!