Buenas noches, señor monstruo (1982)

Four boys get lost in the forest in the middle of a storm and go take refuge in an abandoned mansion. There they will meet and face Dracula, the Werewolf, Quasimodo and Doctor Frankenstein. Despite the attempts of the monsters to scare them and, in passing, recover the lost prestige, the boys, with the help of Count Dracula's son, will face the evil creatures.