During the 2020 lockdown, Damián begins meeting a group of strangers every night in a park in Mexico City. Among them is Arely, a mysterious young woman who seems to belong more to the darkness than to the world everyone else knows. As they grow closer, Damián discovers that behind her gaze lies a secret powerful enough to change his life forever. What begins as an unexpected encounter soon leads him into a reality he once believed existed only in books and legends-a reality where love, blood, and immortality are bound together beneath the same darkness.