The film starts in a promising way. After the amusing (but rather long) opening credits, the first scenes suggest that this will be a weird and gloomy comedy reminding of the films of Jeunet.
Willard from the title is a nerdy man living with his elderly mother and working for an asshole boss who now runs the company that Willard’s father founded. He grows a friendship with the rats in his basement. A white rat he calls “Socrates” who becomes his only friend. A big, grey rat is (Big) Ben.
The concept soon runs off to silly, even childish scenes with rat training and eventually Willard terrorizing his boss with his rats. Then Ben starts to turn against Willard. In big steps the film runs away from what I like and it turns out to be quite awful. The stars below are mostly for the first 10 minutes.