Travelling as part of an eight-officer investigation team, Detective Sime Mackenzie's destination lies in the Gulf of St. Lawrence. Only two kilometers wide and three long, Entry Island is home to a population of around 130 inhabitants - the wealthiest of which has just been discovered murdered in his home. The evidence points to a crime of passion. But for Sime the investigation is turned on its head when he comes face to face with the prime suspect, and is convinced that he knows her - even though they have never met.