It’s What Inside can seem like another obnoxious movie about adults acting like teens, edited with enough neon glare and social media cuts to make it palatable to a younger crowd. But the horror comedy is more than just streaming fodder; it’s fun, funny, and clever, unfolding like a game night gone terribly wrong. There are romantic entanglements, identity crises, steamy role play, and welcome jabs at our generation’s increasing tendency to replace personality with social media presence. Its critique may not be as sharp as other horror comedies that have come before it (most recently, Bodies Bodies Bodies and The Blackening), so it can feel a bit dated. But it’s still an enjoyable watch, one best seen with friends who you haven’t seen in a long while and who have maybe, once or twice, made you feel painfully, irrationally, (murderously?) jealous.