David Mitchell stars as twins in BritBox's "Ludwig."

David Mitchell stars in the new detective series "Ludwig," premiering on BritBox March 20. He plays identical twins: John, a reclusive puzzle maker, and James, a Detective Chief Inspector. When James goes missing, John impersonates him to help solve cases. The show combines comedy and mystery, featuring John’s awkward attempts at police work. Mitchell expressed his long-standing interest in detective stories, which led to the development of "Ludwig" from a two-page summary by writer Mark Brotherhood. "Ludwig" explores themes of personal retreat and engagement, as John and James cope with their father's disappearance in different ways. The series promises intriguing plots and engaging murder mysteries.