Two couples from different generations holiday at a beach resort in Cozumel, Mexico. Ana (Natalia Córdova-Buckley) and Joaquín (Raúl Méndez) are a young couple navigating unspoken tensions and fading passion, while Emma (Charo López) and Ricardo (Fernando Guillén Cuervo) are an older, experienced pair reflecting on love, mortality, and life's lost opportunities. As the tropical paradise forces both couples into unexpected conversations and intimate reflections, their desires and relationship dynamics undergo a quiet transformation.