Each year around 20 people are lost. Martin Schwartz, police psychologist, lost his wife and son five years ago. In the middle of a mission he gets a call from a strange old lady who calls herself a thriller writer. He absolutely had to come aboard the cruiseship "Sultan of the Seas", there is evidence of what happened to his family.

"She sees the teenage girl on the train platform, standing in the pouring rain, clutching an infant in her arms. She boards a train and is whisked away. But she can't get the girl out of her head ... Heidi Wood has always been a charitable woman: she works for a nonprofit, takes in stray cats. Still, her husband and daughter are horrified when Heidi returns home one day with a young woman named Willow and her four-month-old baby in tow. Disheveled...