Blondie Has Servant Trouble is a 1940 American comedy film directed by Frank R. Strayer and starring Penny Singleton and Arthur Lake.
As a rule, Dithers refuses the raise, but instead he offers Dagwood and his family a two-week stay at a country house, complete with servants.
The haunting continues later in the night when two more persons, Anna and Eric Vaughn, arrive and pretends to be servants, and start a series of frightening events, like sliding panels and moving shadows.
He reads that his servant is responsible for plunging a knife into the back of an attorney, claiming that he stole Eric's inventions and gave them to Batterson, the former owner of the house.
Dagwood sets out to catch Eric, and succeeds just in time to prevent the man from stabbing his own wife Blondie in the back.