Ngaio Marsh Theatre was based on four murder mysteries by crime writer Dame Ngaio Marsh: Vintage Murder, Died in the Wool, Colour Scheme, and Opening Night (the latter was the only one not set in her homeland). UK actor George Baker (The Ruth Renell Mysteries, I, Claudius) starred as Inspector Roderick Alleyn — the rational Englishman solving murderous crimes in the green and pleasant colony. The series successfully leveraged the international appeal of Marsh's novels. Ngaio Marsh Theatre was the first New Zealand television drama to screen in the US (on PBS).