Set in Szczecin, Poland, the series begins after the body of a young woman is discovered under the melting ice. It asks ‘Who was she? Why did she die? Who did she leave behind?

A small-town policewoman is chasing a vicious serial killer; at stake is first a country girl's life, and then her own life.

Contemporary Szczecin. Kasia, a single mother working on a cruise ship, is waiting for true love. One day she meets handsome Piotr, an incorrigible seducer. It turns out that they have met before and even spent the night, but the man remembers neither the circumstances of that meeting nor the woman's name. However, Kasia, despite her disappointment, hopes for a lasting relationship.

Joko is a young man who works on the cistern, he is the only breadwinner in a family. On his second anniversary of employment, Joko and his colleagues meet with foreign delegates who force boy and the rest to… carry on their back. At first, Joko is against and rebels against this humiliating activity. However, under the pressure and desire to earn good money, he subsides.