Upon the death of their father, down-on-their-luck brothers Ernie and Lars Smuntz are surprised to learn that their inheritance is a crumbling, old mansion that both assume is worthless. But they couldn’t be more wrong. In fact, the dilapidated homestead is an architectural masterpiece and worth millions. But just as the hapless Smuntzes are all set to cash in, they discover there’s one very small problem keeping them from life on Easy Street-the house is occupied by a tenacious mouse, who has no intention of vacating the premises. Two grown men versus one teensy, weensy mouse. It’s no contest…for the mouse.

From ferocious feline to deranged exterminator…the only thing Ernie and Lars might catch in their “better mousetrap” is themselves. The brothers are about to learn that “Are you a man or a mouse?” is a trick question as they engage in a battle of wills with the wily little rodent that may just bring down the house.