Don't Let It Kill You (1967)

Abel, an immature and eccentric man finds himself at a turning point. He sleepwalks through his life, which revolves around his dying mother and journalist girlfriend Madeleine, who is even more immature than he is. Abel is finally made to face up to reality when he has to say goodbye to his mother and then, by chance, he meets an old girlfriend who is about to move to Paris and be married.