The Monster (1925) - Early "Old Dark House" comedy-horror-thriller from director Roland West. After noted citizen Luke Watson goes missing following a mysterious car crash, his plucky daughter Betty (Gertrude Olmstead) and two of Watson's clerks (Hallam Cooley and Johnny Arthur) decide to investigate at the scary mental hospital nearby. They find the devilish Dr. Ziska (Lon Chaney) who plans on using living human subjects in his surgical experiments. Our heroes bumble and stumble their way around the hospital's many corridors and secret rooms in hopes of escape. Also featuring Charles Sellon, Walter James, Frank Austin, Edward McWade, and Knute Erickson as Daffy Dan.
Johnny Arthur, a longtime character actor in the years after this, is amusing as the meek clerk who is also a would-be detective. Chaney gets to act with less makeup than usual, and he also gets to ham it up with glee. Olmstead also makes for a fetching heroine. If you've seen many of the "Old Dark House" types of films that came after this, you won't really find anything too unexpected here, but I found it enjoyable despite its familiarity. 7/10