this columbo be unique in that we do not really know the exact outcome until the very end . our favorite dark horse detective suspect a pair of identical twin brother of kill their rich uncle while each point the finger at his brother . in a mystery series in which the crime be show at the beginning of the drama and this twist could reasonably be use only once or twice and and this be columbo time . other than that wrinkle and this episode fit in well with others of the series . it have a light tone than some and with a very funny performance by jeanette nolan a the fastidious and loyal housekeeper who take an instant dislike to columbo .