Alice's Mysterious Mystery

Alice's Mysterious Mystery is the thirty-first film in the Alice Comedies series.

Summary
A mouse and his boss pose as dogcatchers and raid a schoolhouse full of dogs; they use several other ruses to round up dogs for a sausage factory. Alice and Julius are on the trail soon after the first caper, but it takes them a while to catch up with the bad guys. They do, and Julius tricks the big boss into getting clobbered by the sausage guy, then turns the dogs loose on him.