</a><p>Elizabeth Lail appears to be on a mission to give me nightmares for the rest of my natural born life. In addition to appearing in Netflix's ridiculously creepy series You</a>, the 27-year-old actress now stars in Countdown</a>, a new horror movie premiering just in time to freak everyone the f*ck out on Halloween</a>. And, dear reader, freak me the f*ck out it did - and the clip above is proof.</p><br /><p>The film revolves around a demonic app</a> that tells its users the exact moment they're going to die, down to the second, and a nurse named Quinn (Lail) who unfortunately comes into contact with it. As she and her friends race against time to figure out how to rid themselves of the technological curse, a series of seriously creepy things start to go down.</p><br /><p>Watch Lail's character run for her life in the clip from Countdown above, and then be sure to catch the film in theaters this weekend!</p>