How well do you know your husband?

When a young woman’s body is found floating in the lake behind Charlotte’s home, it feels like a cruel twist of fate: her husband’s first wife tragically drowned in the very same spot.
 
But this woman is no stranger either – Charlotte saw her husband Paul talking to her the day before. So why does he tell the police he’s never met her?
 
As dark secrets about her husband begin to come to light, Charlotte has to ask herself the most dangerous question of all. Can she really trust her husband, or is he a stranger?