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 and apparently homeless, this girl could be a criminal--or worse. But despite her family´s objections, Heidi invites Willow and the baby to take refuge in their home. Heidi spends the next few days helping Willow get back on her feet, but as clues into Willow´s past begin to surface, Heidi is forced to decide how far she´s willing to go to help a stranger. What starts as an act of kindness quickly spirals into a story far more twisted than anyone could have anticipated.