It starts with a phone call late on a hot Dublin evening.Margaret, an anxious mother, is desperately enquiring about her missing daughter.

The police think she's overreacting. Then a young woman's body is found in the canal - battered, mutilated and broken.And one mother's life is shattered forever.

Margaret must decide how far she will go to ensure her daughter's sadistic killer is brought to justice. By hunting him down will she become his next victim？