Dulce María Espinosa Saviñón (born 6 December 1985), simply known as Dulce María, is a Mexican singer, actress and writer who began her career at age 5 by appearing in hundreds of TV commercials. She is the great-niece of painter Frida Kahlo.
FBI agent Lee Harker investigates several cases with a common denominator: a man killed his family, committed suicide and left a note with satanic symbols. Harker discovers another series of seemingly impossible coincidences among the killings.