A darkly humorous take on British sensibilities. The story involves a group sent to a remote lodge for a team-building exercise organized by Palisade Defence, a weapons company. Upon arrival, it becomes clear they aren't alone... The film begins with a pursuit culminating in a violent killing, underscored by The Small Faces’ “Itchycoo Park,” immediately establishing that this is unlike typical horror comedies. Comedy is inherently subjective, especially when mixed with horror; some attempts have been well-received, like Shaun Of The Dead or the anxious thrills of the Evil Dead series, while others are best forgotten. Severance, fortunately, manages to be as witty as the instruments used in its violence, keenly attuned to contemporary culture and its oddities. Originally conceived as "P45," a script focusing on employees forced to participate in team-building exercises where failure meant job loss, the concept evolved into a slasher film with a satirical twist. The filmmakers note on the DVD that the characters embody familiar office stereotypes—the undeserving leader, the jovial charmer, the unsettling colleague, the attractive employee drawing unwanted attention, and so forth. These recognizable types, steeped in British workplace conventions, are thrown together for a chaotic comedic mix. The film also examines weapons manufacturing companies with sharp commentary. A promotional video from the managing director is particularly amusing and effectively introduces the story. Even as the violence escalates—and it does become quite bloody at times—the darkly humorous nature of the script persists. The movie contains numerous clever jokes, so many that I’m still discovering new ones after three viewings. Therefore, anyone who has only seen it once and wasn't entirely won over by the concept should give it another try, paying close attention and avoiding distractions. The film even pokes fun at its own genre, coming from the director of 2004’s cult classic, Creep. The cast delivers strong performances across the board, from Tim McInnerny's portrayal of a sly team leader to Danny Dyer's depiction of a drug-using "cockernee" character, all interacting with clever and amusing results. It is an excellent addition to the horror comedy genre, one that only improves with repeated viewings. 9/10

Source on TMDB