One morning Gwen Thomas takes a short walk with her Siberian husky in the outskirts of the Welsh town she calls home.

She is drawn to a desolate area where, some twenty years ago as a teenager, she was brutally attacked and her friend killed.

Disorientated by a sudden rush of memories, she has a fall. Later, recovering in hospital, she begins to recollect the events that led up to her friend’s death.

DI Winter Meadows is encouraged to reopen what has for some time been a cold case. If Gwen can remember who attacked her, it could lead to a prosecution.

But not everyone wants Gwen to recover her memory. Having got over her fall, she now faces a greater danger – from whoever else knows what actually happened.

Can DI Meadows find the identity of the attacker before Gwen once more becomes a victim?