卢瑟·斯旺医生（伊恩·萨默海尔德饰）进入了一个极度恐怖的世界，一种神秘的疾病把他最好的朋友迈克尔·费恩（艾德里安·霍姆斯饰）变成了以其他人类为食的凶残掠食者。随着疾病的扩散，越来越多的人发生变异，社会分裂成两个对立的阵营，使得正常人类要对抗越来越多的“吸血鬼”。斯旺与时间赛跑，以试图弄清事情的前因后果，而费恩则逐渐崛起，成为吸血鬼一派强大的地下领袖。
他们在一次意外事件中相识，本以为只是彼此生命中的过客，却在不断逼近的危险与真相中，被迫站到同一阵线。当爱与责任、真相与救赎交织，他们必须在“刀刃之上”寻找各自的答案。
Popular BBC comedy series set in the fictional south coast seaside town of Walmington-On-Sea during World War 2. Alternating moments of gentle character comedy with broad slapstick, it recounts the misadventures of the local voluntary defence force (or 'Home Guard') consisting of men too old or 'unfit' for military service. They are led by the pompous Mainwaring, manager of the local bank, and consist of the suave, mild-mannered Sergeant Wilson , Lance-Corporal Jones, the town's butcher and an old soldier prone to hysteria, cockney spiv Walker, dour Scots undertaker Frazer, gentle, elderly and incontinent Godfrey and dim-witted mummy's boy, Pike, whose mother is 'friendly' with Wilson. They are based in the Church hall where there is much friction between Mainwaring, the effeminate Vicar, his creeping Verger and ARP Warden Hodges (the grocer) who calls Mainwaring 'Napoleon' and strongly dislikes him. The 80 episodes (the last 68 made in colour) have been frequently repeated, many are available on video and there was a 1971 Cinema version. A British institution, familiar to most people throughout the country.
