Martín, an attractive young man in love with his girlfriend Paula, wakes up worried. Without knowing why, he feels severe pain in his anus. He goes to the bathtub to try to relax, but begins to bleed. The bathroom door is unlocked and his roommates are about to arrive. What to do when you don't know who you are, and life is full of locks (and closets).

All it takes is picking up the phone, dialing a number, and in barely half an hour, you'll have a guy in a red outfit standing at your doorstep with a pizza in his hand. Who's that guy bringing us dinner to go with a SuperBowl or Champion's League soccer game on TV or the latest Blu-ray blockbuster? In FOUR SEASONS, such a guy is Mario, a film geek, love addict and college drop-out with a less-than-impressive resume, who's facing an identity crisis at the end of his twenties while living with his grandpa. Mario delivers pizzas. He's one of the many surviving off his tips by working at Pizzicato, a pizza shop owned by one nasty, sleazy boss and the kind of place you would only dare order food from at gun-point.

Cristina is a young literature student who works at night in a bar, Rosa is a brilliant executive in his thirties, and Anna is married and has one son. All three are sisters, and every one thinks her life is worthwhile and that their sisters have taken the wrong way. But it is time to recognize their dissatisfaction, and perhaps they are needed more than they are willing to admit ...