In Stockholm’s oldest quarter, Bell Everhurst loves her job working as a nanny for the rich and charming Hanna and Max Mogert, caring for their three children. But one morning, everything changes. A woman from a clinic Bell has never heard of asks her to pass on the message that Hanna’s husband is awake. But the man isn’t Max. As the truth about Hanna’s past is revealed, the consequences are devastating. As the family heads off to spend their summer on Sweden’s idyllic islands, will Bell be caught in the crossfire?