Before. A man running along a remote clifftop path on an icy-cold February morning. A woman standing on the cliff's edge. A red scarf on the ground between them. After. The man is alone on the cliff - adrenaline pumping through his veins. The woman is on the beach below - dead. The red scarf is also on the beach - beautifully (and impossibly) wrapped around the woman's broken neck. What happened? Two lives colliding by chance? Or a revenge decades in the making?