A couple decides to have a free pass to be with another person without it being considered cheating, causing them to question the terms of their relationship. Maia and Caetano have been living together for a year and, upon signing a cohabitation agreement for their health insurance, they experience the true impact of monogamy. During a game with friends, they both choose one that is permitted for themselves. However, when the hypothetical situation becomes reality, they rethink the limits and desires of their relationship.