On a conservation study in northern Alberta, field technician Marian Engström found her true calling: training rescue dogs to help track endangered or threatened wildlife. Under the tutelage of experienced handler, Tate Mathias, Marian felt her future opening up before her... But after Tate is killed in a bear attack, Marian finds herself questioning the man she thought she loved. Growing inconsistencies start to surface, linking Tate to the murders of four women over six years. Working with a retired forensic profiler who was never able to close the cases, Marian relives her every moment with Tate, desperately hoping to clear his name. And as she circles ever closer to the truth, evil stalks her every move.