Once, a large family lived in three apartments on the same stairwell. Then they moved away; other people bought the space without suspecting that all three apartments are connected by hidden doors… But are they really hidden? Or are the new residents only pretending to live separately, while, hiding from one another, they enter other people’s homes, quietly keeping an eye on the neighbors? And it all comes down to one passion: a scorching, spiced, tormenting unrequited love—one that forms a tragic love triangle involving a forty-year-old man, a young girl, and a mature woman…