Police procedural: some detail pertaining to a murder case is nagging at the back of a detective's mind "like having a stone in his shoe." Once he teases it to the surface, he solves the case. Andrés Soler, Fernando Fernández, Ariadna Welter, Roberto Cañedo, Wolf Ruvinskis, Rafael Baledón, Ana Eugenia Martínez Added on Amazon Prime 2021-05-06.