La Casa dalle finestre che ridono (The House with Laughing Windows)

I find Pupi Avati's La Casa dalle finestre che ridono one of the most creepy and unsettling gialli ever made. Unfortunately Avati didn't make any more films in the genre, but at least he can claim to have directed one bonafied classic. He went on to direct some excellent horror films as well, like Zeder and L'Arcano incantatore (which is crying out for a DVD release). Poster by Piero Ermanno Iaia