• Designated Evil: A downplayed example. Thomas groping Angela is indeed a disgusting act, but this is strangely presented as worse than Jim's violent rape attempt on her. The former is treated by her as a Moral Event Horizon and royally pisses her off, while the latter is treated as mere inappropriateness.
  • Spiritual Predecessor: To 2014's Free Fall, which featured a similar premise of successful but overworked young businesswoman trapped in her high rise place of employment while being stalked by a deranged co-worker.
  • Squick: Take your pick.
    • One of the goriest scenes in this film is when Thomas repeatedly rams Jim's body into a wall until he is not only dead, but his guts are spilling out of his body.
    • Thomas tossing Carl's dead body into the flooded elevator, right next to Angela.