The Chestnut Man (Danish: Kastanjemanden) is a Danish crime series released on Netflix on 29 September 2021. The series was created by Dorte Warnøe Hagh, David Sandreuter, and Mikkel Serup, is directed by Kasper Barfoed and Mikkel Serup, and is based on the book of the same name by Søren Sveistrup. The series stars Danica Curcic and Mikkel Boe Følsgaard as Naia Thulin and Mark Hess, who investigate the murders of several women involving a mysterious chestnut figurine left at the crime scenes.