Young single mum Grace is drowning. Her little girl Sylvie is distant, troubled and prone to violent tantrums which the child psychiatrists blame on Grace. But Grace knows there s something more to what s happening to Sylvie. There has to be. Travelling from the London suburbs to the west coast of Ireland, Grace and Sylvie embark on a journey of shocking discovery, forcing Grace to question everything she believes in and changing both their lives forever.