Dead in 3 Days (German: In 3 Tagen bist du tot) is a 2006 Austrian horror film written and directed by Andreas Prochaska, and co-written by Thomas Baum.

[1] While celebrating their high school graduation, Nina, her boyfriend Martin, and their friends Mona, Clemens, and Alex each receive an anonymous text message telling them that they will be dead in three days.

The killer binds and gags Kerstin, and is revealed to be Mrs. Haas, who is attempting to avenge her son's death (which occurred three days after he fell through the ice) while wearing a mask fashioned out of her dead husband's preserved face.

[2] A second review by the same website awarded a 2/4, and concluded, "This is a decent-enough entry into a subgenre that true horror fans have been wishing a quick and painful demise upon for years, and while there is nothing terribly new or original on view, it will while away an hour and a half of your time with no long term damage.

"[6] David Johnson's review of the film for DVD Verdict concluded with the critic writing, "Some moments in Dead in 3 Days soar, hinting at a kick-ass horror thriller, but a too leisurely pace and long, uninteresting yardage between kills hold it back".