An invitation to visit Niall's childhood home is too good an opportunity for Vikki to pass up. This is the chance she's been waiting for to get closer to her friend, and to meet the family he's always been so cryptic about.
But when Vikki arrives at the beautiful but remote Lynes Glen on Ireland's west coast, and finally meets Niall's estranged brother Alex and his overbearing sister Lainey, she realises that this reunion will be far from heart-warming.
As Vikki fails to convince any of them that she saw a mysterious woman at the lake - off-limits since a tragic accident - strange and sinister incidents begin to happen at the Blake family home. What secrets are they keeping? And why exactly did Niall ask Vikki to join him for the weekend?