Ovidio is a bored and tediously repetitive middle-school teacher, an easy target both for his students’ disgusting pranks and for the principal’s reprimands. The monotony of his yawning days is unexpectedly broken when, after twenty years of absence, his twin brother Raf turns up: an overexcited, down-and-out singer who performs for a few small-time, undemanding audiences in shabby venues on the outskirts of town. Without so much as a by-your-leave, Raf moves into his brother’s home and lives off him, shamelessly playing the part of a carefree rogue while dragging Ovidio into a series of embarrassing misunderstandings.