Tremarnock is a small fishing village, crowded with holidaymakers in the summer, but a sleepy Cornish backwater at other times of the year. Here Liz has found refuge with her young daughter, Rosie, after her relationship with Rosie's father came unstuck. Now happily married to village restaurant owner, Robert Hart, all seems set for a quiet autumn and merry Christmas. But strangers have bought the local guest house and seem to have big plans. Why is he so charming and confident, but she so frightened? Are they who they say they are? And what are they really doing with the guest house?