Eravamo 7 sorelle (1939)

Seven girls show up at the home of the aging-Count Varani and claim they are his daughters, and bring sufficient enough evidence to make him believe them. Leonardo, the Count's son, return from an African trip and starts to check on the girls with the intent of disproving their claim. And, since he is falling in love with Lisa,one of the claimants, it is important to prove he is not her step-brother.