In the new TV show 'De Erfgenaam' ['The Heir'] Ruben Nicolai searches for the rightful heirs of deceased persons who left behind an inheritance which has never been claimed. Ruben is supported by inheritance law specialist and genealogist Klaas Zondervan. Nicolai goes in search of the family stories behind these unknown inheritances. This takes him all over the world and produces touching, funny and poignant moments. He tries to get the money to the rightful heirs, before the statute of limitations of 20 years expires and the money disappears into the Dutch Treasury.