Boris, a balding, pot-bellied fifty-something, is madly in love with the handsome young Cezar. But Boris was born of Cezar's side and is the size of a mouse. He leads a clandestine life entirely devoted to the man who is both his origin and the object of his affection. Everything changes the day Cezar, who doesn't even know he exists, brings a woman back to their love nest.