Boyle’s knack for making something truly gripping is all over this. He could’ve easily gone for the typical zombie flick with groaning, slow-moving creatures. But nah, he flipped the script. Instead of the usual undead, he gave us the "Infected" – raging, fast, and furious. They’re more like the worst hangover you've ever had, except instead of a bad headache, they’re all about ripping you to pieces. Proper terrifying!