A sailing yacht dies off the deserted shores of the Isle of Skye. Shipwrecked Nathan and Livia Moore find shelter in the house of Virginia and Frederick. Very soon, a trusting relationship begins between Virginia and the seductive Nathan. The woman, following her feelings, shares with him a secret that she had previously hidden from everyone. But then one day Virginia's seven-year-old daughter doesn't come home from school. Where could Kim have disappeared to? Maybe she's hiding? Or becomes another victim of a maniac who has already killed two schoolgirls? Virginia, to her horror, realizes that perhaps it was Nathan who was involved in the terrible events of recent times...