Five-year-old Amaya disappears during a Christmas parade in Málaga and the case catches the attention of Miren, an intern at the local newspaper. When a little girl goes missing during a parade in Málaga, a young newspaper journalist becomes fiercely determined to help Amaya's parents find her.

In 2016, six years after Amaya vanished, a mysterious video reopens the case. In 2010, the police investigate a family friend with a suspicious past.

Diario Sur publishes the video of Amaya after Miren strikes a deal with Millán, leading to a flood of new tips and a potential suspect.

James Foster gives Miren disturbing information that opens up a new line of inquiry. In 2019, a second video appears, making Ana fear the worst.

Miren herself becomes a target of suspicion but refuses to give up on the search for Amaya, even when it takes her into serious danger.