Scream
Scream is a master within its genre of horror but without a doubt just as much one in mystery and suspense.
I adore Scream because of its colorful characters, characters that work of off each other so well because of their different characteristics yet having such captivating chemistry nonetheless. It's witty yet avoids the possibility of being labeled as cringe-worthy. It's scary yet does not rely on gore or other nonsensical elements to present its story.
Every character has its own motives, strenghts, weaknesses and insecurities, making everyone a potential suspect as well as victim. The way director Wes Craven cleverly plays with the audience by providing subtle hints, effective camera-work and creating a general feeling of mistrust amongst all of the possible suspects is just so brilliant. Performances are spot on all around, with a score nothing short of genius that perfectly captures the film's overall vibe.
It is rare you encounter a movie that portrays that many characters all having to share a limited amount of screen time yet one by one being so easy to root for and immediately captivating. Probably the movie I have rewatched and recommended more than any other.
What makes this movie great though, one of the key factors for its legacy and impact on the genre, is how perfectly the film blends horror into mystery. It's not just a slasher movie, it's a whodunnit. I feel this adds an incredible amount of stakes and substance to the film. Furthermore, it acknowledges itself entirely throughout through for example Randy's rules to survive a horror film. The movie is basically a reflection of itself in the most comical way imaginable.
Lastly, Matthew Lillard and Jamie Kennedy are the ULTIMATE teenage dirtbags.