Miss Moström is the town's postwoman, a virgin spinster. But behind her tidy bun and severe exterior, there's a dream about something else. One day, she finds a pile of dirty magazines addressed to the town's priest, and they awaken her slumbering lust. She soon makes a decision: she will learn from the women in the magazines, and she will seduce a man. The postwoman's sexy secrets is a short story about pent-up desire. Even the most rigid exteriors can hide hot and vibrating sensations and fantasies.