The Bowery Boys Meet the Monsters (1954)

In trying to secure a baseball field for Bowery youngsters to play on, Slip and Sach visit Gravesend Manor, inhabited by a creepy family that desires to use both Slip and Sach, either in whole or in part. The boys aim to secure the usage of their lot, while the Gravesends want their heads for mad science experiments and bodies for feeding (to a carnivorous plant and to a vampire).