chunk: Larry Lipton (Woody Allen) and his wife Carol (Diane Keaton) meet their older neighbors Paul (Jerry Adler) and Lilian (Lynn Cohen) House in the elevator in a pleasant encounter. But the next night, Lilian is found to have died of a heart attack. The Liptons are surprised by the death because Lilian seemed so healthy.
  The Liptons are also surprised by Paul's cheerfulness so soon after his wife's death. Carol becomes suspicious and starts to investigate, even inventing an excuse to visit him. An urn she finds in Paul's apartment contradicts Paul's story that Lilian had been buried. Larry becomes frustrated with Carol, telling her she's "inventing a mystery".