Manhattan social worker Anita Servi never had any reason to suspect that her husband, Benno, was cheating. The police, however, have no problem accusing him of murder when the couple's loyal baby-sitter, Ellen Chapman, is found stabbed to death with one of his screwdrivers. Torn between believing in Benno, and the circumstantial evidence stacked against him, Anita is determined to get to the truth.