Jackie and Oopjen

12-year-old Jackie is a regular at the Rijksmuseum. Her mother Mouna works there as a curator. When the famous Rembrandt paintings by Marten Soolmans and Oopjen Coppit are exhibited, something wonderful happens. When Jackie walks past their portraits after hours, Oopjen’s eyes follow her. Jackie thought she was just imagining it, but this turns out not to be the case. Suddenly Oopjen is in front of her, but Jackie doesn’t want to hear from her. She thinks it is a costumed actress. But it soon becomes clear that Oopjen is telling the truth. She stepped out of the painting because she thought that Jackie was Aeltje, the sister she has lost for years. When Oopjen realizes her mistake she is distraught. But the tough Jackie has a big heart and she’s used to solving everyone’s problems. She secretly takes Oopjen home so they can look for the painting of the lost sister together. But how is she ever going to hide those otherworldly Oopjen from her mother? And how does Oopjen return to the painting?