Eternal life is getting harder for the undead Tina, who subsists on the transfer of energies accessed during the male orgasm. When her partner-in-crime gives in to suicidal ennui, Tina is left alone to protect her species from extinction.

Yago and David, a gay couple, are aware that their life on the edge threatens to come to an end. The two young men lead a life marked by dependency. This is what is called a toxic relationship.