Nowhere feels as foreign as home. What if your own children turn against you? Joni Sigerius, stepdaughter of a respected mathematician and rector of a Dutch university, has started a business with her boyfriend Aaron that she would prefer to keep secret. When their secret is revealed, a fireworks factory also explodes in the city of Enschede, where the family lives. For Siem Sigerius, the stepfather, this sudden knowledge hits like a bomb and shakes the very ground he thought he was standing on. To make matters worse, that same summer, his son is released from prison, leaving the family in complete turmoil.