In 1999, the disappearance of young Alex prompts his friends and sister to search for him, leading them to unravel scary truths about their small Danish town.

The year is 1933, and society has very specific expectations of how young women should behave. Seventeen-year-old Maren is wild and unruly, so she is sent to the women's institution in Sprogø to adapt, but the stay has the opposite effect.