A nun's life is hell - or so thinks nightclub singer Deloris (Goldberg) when she takes sanctuary in a convent after witnessing a gangland murder. To make matters worse, Mother Superior (Smith) coerces her into joining the tone-deaf choir. But Deloris is a can-do kind of gal, and within no time the motley crew are belting out '60s tunes. Church attendance is revitalised, confidence abounds, but the convent's new-found fame stretches as far as Mob headquarters. A bizarre mix of actors goes some way towards bolstering this flyweight caper; but the last third degenerates into farce, with nuns and thugs playing cat-and-mouse in a Reno casino. A one-note movie.