In the middle of the carnival, Sirena, a young and beautiful singer, receives a fatal shot. Augustón, the artist's head of security, decides to go all the way to find the murderer. With a past marked by difficulties, Sirena began her career in bars, during which time she also met the powerful priestess Marina de Oxum who predicted her future fame. In his investigations, Augustón discovers that the apparently strong and happy young woman was involved in a dark world full of pain and secrets. The list of suspects in the crime grows every day, including people very close to the star.