Four extraterrestrials, X-1, X-2, X-3 and X-4, arrive on Earth in the early sixties. Here they decide to take on human features to study the terrestrials incognito, but end up getting involved in the Roman "dolce vita".
Le sette vipere (Il marito latino)
Le Olimpiadi dei mariti
Mosaic
The Revamping of Dracula