The Haunted House

A Buster Keaton film from 1921. From Wikipedia:

Keaton plays a teller at a successful bank and unbeknownst to him, the manager at the bank and his gang are planning on pulling off a robbery and hiding in an old house which they have rigged up with booby traps and effects to make it appear to be haunted. After a mishap that afternoon with Keaton getting glue all over the money and himself, he almost thwarts the gang's robbery but when the owner of the bank walks in and sees Keaton armed with a gun he assumes it was he who tried to rob it. Keaton flees and takes refuge in the old house, however a troupe of actors from a theatre production are currently seeking refuge in the house and are still fully clad in their scary costumes from the production (ghosts, skeletons etc) leading Keaton and the gang of robbers to believe the house actually is haunted.