Boredom and monotony lead a couple to play a dangerous game, Carlos and Ana accept the invitation of Amadeus and Carmín to embark on a path that leads them to engage in a series of seemingly "innocent" provocative challenges, unaware that they are entering a territory that will make them question how couples self-destruct and how madness occurs to regain a love that is fading, even to the point of the obscenity of the flesh.