Yahya Abdul-Mateen II is formidable in Netflix’s take on the thriller novel Denzel Washington turned into a noughties action movie. But it’s a great lesson in why shows don’t normally have a glum high-octane hero Who doesn’t love a thriller in which a lone wolf takes down an all-powerful criminal network? Jack Reacher, Ethan Hunt, whatsisname from The Night Agent – however adverse the circumstances, these capable chaps will prevail. Hand-to-hand combat against a highly trained ninja henchman?...