Separation is a one-time watch, for sure! The direction could have been a little better. Scary? Yes, plot twist, yes. The first half is a little slow but the story builds up in the second half. This is a drama & Horror film, as it has good character development of Jeff the girl’s Dad & his little girl, etc, and very Creepy, frightening visuals, which were NOT all CGI, some were definitely Practical effects, especially the life-size version of the mime or clown is an actual Actor who may have contortionist skills or some of his Movements may be CGI, but He is real & Terrifying! Though I don’t like the very Last moments as it’s scary & Disturbing, but I bet they did that to leave it open for a sequel. I really liked it, & don’t understand how so many critics think it’s an awful movie.