The acting is actually very good but it lacked plot. There isn't much actions besides gore scenes that pop up randomly. The people who acted as the crazy or infected ones in this movie are very brave considering what they had to do in this movie and the sudden switch from not infected to being infected is crazy! I don't wince at gore scenes but this movie had me wincing at almost every scene from just how real they made the gore look. The ending was also very shocking and it did leave some unanswered questions but I think for the most part it was the best way to end it instead of some other paths they could've taken. I won't ever rewatch this since I want to have some sanity left and don't wish to be grossed out again but don't listen to the description. It's just rape and gore on max with some small scenes at the beginning and a small talking scene at the end. The actors did well though, just wasn't the right movie for them.