Ave Maria was the second film-starring vehicle for legendary operatic tenor Beniamino Gigli. Mourning the loss of the only woman he ever loved, concert singer Tino Dossi (Gigli) is temporarily shaken from his doldrums by vivacious Montmartre entertainer Claudette (Kaethe Von Nagy). Dossi doesn't realize that Claudette is merely using him to advance her own singing career. Ultimately won over by Dossi's sincerity and courtesy, Claudette falls in love with him for real, only to suffer the pangs of conscience as a result. About to kill herself, she decides instead to return to Dossi's arms, vowing never to confess her original mercenary intentions.