I really enjoyed this thriller! I had high expectations as it is one of Reese Witherspoon’s picks and I always love her picks. Mark and Erin are a successful London power couple (he’s an investment banker; she’s a filmmaker) and madly in love. They head to Bora Bora on their honeymoon and while out scuba diving they discover… something in the water. I won’t tell you what it is, but what they find causes everything to eventually unravel. You watch them make poor decision after poor decision…. (I had so much secondhand anxiety!)