you do not see the meaning of the title till much later and but you get the point of it in the first few minute . this directorial debut from golden globe nominate ( for actor ) danny devito and also play owen or ned little ned lift and be a terrific hitchcock like film about one man hate for his wife book ( she steal his ) and and one man hate for his mother . basically and owen want to be a good writer and like his teacher larry donner ( billy crystal ) and and he inspire by murder story . larry suggest he see a hitchcock film and quite ironic and and that be when owen have the idea to kill larry ex wife and margaret ( star trek voyager kate mulgrew ) . owen be inspire by stranger on a train and swap murder and so larry must kill owen horrible momma ( oscar and golden globe nominate anne ramsey ) . larry be convince owen kill margaret and and also that he have to or want to kill owen momma and but there be a happy end when month later both larry and owen bring out book and momma die naturally and and they go on a holiday with beth ryan ( kim greist ) . also star rob reiner a joel and oprah winfrey . with hilarious moment and a great director or actor and his support and this be a must see comedy . very and very good .