During World War II, everyone had to keep secrets to survive, but at what price? Lambert and Tuur, two 12-year-old boys living in a small village in Nazi-occupied Holland, share a strong friendship. But even this bond is put at risk with the arrival of a lively young girl named Maartje, carrying with her a heavy secret about her past. As Tuur and Maartje become close, the estranged Lambert grows increasingly jealous and acts irrationally, exposing Maartje’s secret with far-reaching consequences that are beyond his understanding. The danger and the humanity of wartime friendships asks three children to find maturity far beyond their years.