Do you remember the movie "It Follows"? Smile reminds me a lot about that movie. The plot is very similar, something is passed on from one victim to another. The creepiness and terror are also very much alike. It's pretty terrifying, even though it doesn't use that many jump scares. Unlike other horror movies which primarily relying on jump scares to get the audiences hooked. The plot is rather predictable, I could already guess the ending halfway through the movie. But even then, I didn't get bored. It must be the way the director made the movie engaging. The only reason I didn't give it 7 stars is because I hate unsettled endings. I like horror movies where the protagonist survives and defeats the source of problem. That's the only reason I gave it 6 stars.