Valentijn Rixtus Bentinck is a very wealthy, charismatic man whose life is dominated by the mystery of his unknown past. Two days after his birth, he was abandoned at a Catholic boarding school in the south of the country.

When single mother Sandra, full of unwavering energy, is evicted from her apartment by the Dutch government due to fraud, she convinces her daughters Harrie and Stella that their emergency shelter is a holiday hotel. Taking care of her children while being the main breadwinner seems impossible, but Sandra won't go down without a fight: with heroism and creativity, she gives her daughters the best summer of their lives.