The story takes place in the early 1990s, when AIDS was rampant. A non-governmental public welfare organization called "ACTUP" came to the public's attention. In addition to the gay community, there were also patients with AIDS waiting for medical assistance. The organization hopes to arouse the attention of the public and government medical departments through some radical social activities. Nathan (Arnaud Valois) is a newcomer who has just joined the organization. Here, he met an active member named Sean (Nahuel Pérez Biscayart). As time goes by, feelings gradually arise between the two. Sean is seriously ill and his condition is constantly worsening, but even so, he is actively involved in the trend of struggle. In the process, Nathan's role gradually changes from a lover to a caregiver, and his feelings for Sean and the ACTUP organization are also undergoing earth-shaking changes.