The film boasts a strong ensemble cast, including Juan Diego, Carmelo Gómez, and Aitana Sánchez-Gijón. The performances are intense and nuanced, effectively bringing to life the characters' complex motivations and conflicts. Carmelo Gómez, in particular, delivers a standout performance as a troubled cop grappling with his own moral failings. The characters are deeply flawed, which adds layers of realism and relatability to their actions and decisions.

Jorge Sánchez-Cabezudo's direction is meticulous, allowing the suspense to build gradually while maintaining a tight grip on the narrative’s complexities. The screenplay is well-crafted, with sharp dialogue and intricate plotting that reward attentive viewing. The non-linear storytelling might be challenging for some viewers, but it ultimately enriches the film by providing a deeper understanding of the characters and their actions.