Armchair Thriller Series: Dangerous Knowledge

Dangerous Knowledge and High Tide Two favorites from the popular and scary series seen on British television in the late 1970s and early ’80s. Dangerous Knowledge stars John Gregson as an ex-Army Intelligence officer, now an insurance salesman—or is he? 2 ½ hrs, 1 DVD. In High Tide, Ian McShane (Deadwood) is Peter Curtis, just out of prison for manslaughter, obsessed with unraveling the mystery of his victim’s last words. 98 min, 1 DVD.