A Complete Guide to Reese Witherspoon's Hello Sunshine Book Club Picks

"Something in the Water" by Catherine Steadman ($28)

• What it's about: When newlyweds Erin and Mark take a trip to Bora Bora for their honeymoon, everything is perfect . . . until they go scuba diving and discover a nightmare in the water. Together, they must decide whether to speak out or to protect their dark secret.
• What Witherspoon says: "A psychological thriller that captivated me from page one."