The Azules pull their resources together to try and save one of their own, putting the future of the female police force at risk.

The Azules pull their resources together to try and save one of their own, putting the future of the female police force at risk.

The Azules work with the detectives to stage a trap for the man they think is the Undresser—but things don't go as planned.

The Azules work with the detectives to stage a trap for the man they think is the Undresser—but things don't go as planned.

María and Ángeles interview the adopted son of a woman named Rosa, who the Azules believe may have been the Undresser's first victim.

María and Ángeles interview the adopted son of a woman named Rosa, who the Azules believe may have been the Undresser's first victim.

The Azules turn their attention to unsolved murders, hoping to find a connection to the Undresser.

The Azules turn their attention to unsolved murders, hoping to find a connection to the Undresser.

The detectives take drastic measures to find answers. María seeks the help of someone who can offer new insight: a convicted serial killer.

The detectives take drastic measures to find answers. María seeks the help of someone who can offer new insight: a convicted serial killer.

Romandía gets pulled into the investigation as the Azules uncover a clue that may reveal the Undresser's identity.

Romandía gets pulled into the investigation as the Azules uncover a clue that may reveal the Undresser's identity.

Another Undresser victim is found, confirming the Azules' suspicions. Their investigation points detectives to a new suspect.

Another Undresser victim is found, confirming the Azules' suspicions. Their investigation points detectives to a new suspect.

Dissatisfied with the detectives' conclusions, the Azules conduct their own investigation off the books.

Dissatisfied with the detectives' conclusions, the Azules conduct their own investigation off the books.