Wikipedia
Clownhouse
Clownhouse is a 1989 American horror film written and directed by Victor Salva, starring Nathan Forrest Winters, Brian McHugh, and Sam Rockwell in his film debut. The plot concerns three young brothers home alone who fall under attack from three escaped mental patients disguised as clowns. It was nominated for the Grand Jury Prize in the dramatic category at the 1989 Sundance Film Festival.