A disgraced live streamer broadcasts his night in a purported haunted house in Utah online to win back his fan base (and his livelihood). In their feature debut, the filmmaker couple Joseph and Vanessa Winter deconstruct a typical internet bro—without forgetting to serve their audience the reason for sitting in the darkened theater: Deadstream is one of the year’s best horror comedies, a playful thrill ride chock-full of fun, ingenious ideas (there’s a beef jerky cam!) and frights. Excellent!