In a frigid northern city, behind the door of an old apartment building on the twelfth floor, lies a desperate prison built in the name of love and ending in death. The murder of a woman living alone tears open the façade of a middle-aged marriage, the rot of forbidden love, and the scars left by a troubled family.
A cold father, a wife who endures in silence, an ex-boyfriend who can’t let go... Everyone is a suspect, yet the truth lies in the purest, most unexpected place. One shattered ring, two obsessions, three generations of joy and sorrow.