Detectives Sofia Karppi and Sakari Nurmi find themselves investigating two murders, each a chilling puzzle piece potentially linked to a vast and ambitious construction undertaking.

Haunted by a profound sorrow, Karppi and Nurmi pursue the unsettling trail of a message scrawled in blood, striving to decipher its hidden significance.

A difficult discussion with her son leaves Karppi in a precarious position. The mayor now faces threats to her standing, both in public life and in her private world.

As the police launched a desperate search for Iida, Henna fought to navigate a perilous predicament. Meanwhile, a clearer picture of the kidnapper began to emerge.

Karppi and Nurmi pursue answers, clinging to the hope that the mayor remains alive. Meanwhile, Henna’s attempt to resolve a financial obligation takes a disturbing turn.

A frantic phone call draws Henna into a deepening crisis. For Nurmi, a past love resurfaces, bringing with it a sharp ache of memory. And Karppi finds himself unexpectedly confronted by someone best left forgotten.

A nagging feeling persists within Karppi that the case holds complexities beyond the surface, though this perception is not universally shared. Simultaneously, Henna offers a confession that strikes with unexpected force.

As Karppi and Nurmi assembled the last fragments of the puzzle, a chilling realization dawned – their quarry would not yield easily.