Enero's life seemed to run smoothly along a pre-determined path: studies, work, wedding, mortgage... until everything went wrong and he ended up locked up in a psychiatric hospital for five years. He survives by following an eccentric routine, the reason for which he no longer remembers: on Mondays he travels by train to his childhood town, where no one lives anymore, on Tuesdays he visits an old man in a nursing home, on Wednesdays he shoots rats with a catapult into the swimming pool of his ex's villa, on Thursdays he goes to karate classes, on Fridays he drives a tractor through the city at rush hour, on Saturdays he takes part in a radio programme and on Sundays he forces himself to be a plant and do nothing. But when a squatter moves into a flat opposite him and he becomes obsessed with her, his precarious balance is shattered.