Casual Day is a company practice imported from the USA. Every Friday the workers are asked to exchange their suits for more informal attire. Different companies plan their Casual Days in different ways: some organise a trip to the countryside or activities intended to better personal relations between their workers reduce stress and improve business performance. Ruy has always lived as he liked. Though clever he's gotten himself into a jam. José Antonio his girlfriend's father has earmarked an important job for him in his company. He wants him to be his successor. At the age of 25 without actually having decided anything he's trapped. He'd like to say no to the job to José Antonio to Inés his girlfriend and to the Casual Day stuff. But it's not easy to say no. What started out as a simple event a weekend in the country ends up deciding the rest of his life.