Totally Killer delivers a wildly entertaining mashup of horror, comedy, and time-travel sci-fi that revitalizes the slasher genre. The film follows 17-year-old Jamie, who, after a modern-day attack by the resurrected 'Sweet Sixteen Killer,' is flung back to 1987. Her mission: prevent the killer's original murder spree by navigating the hairspray-heavy, neon-drenched world of her mother's teenage years. The premise cleverly inverts the typical final girl trope, making the protagonist an active hunter rather than a passive victim.

Kiernan Shipka shines as Jamie, balancing genuine terror with sharp, anachronistic wit as she critiques 1980s fashion, technology, and social norms. The film's humor stems from this culture clash, offering hilarious observations while never undermining the genuine slasher stakes. Director Nahnatchka Khan expertly blends genuine suspense with laugh-out-loud moments, creating a tone reminiscent of 'Happy Death Day' meets 'Back to the Future.'

Beyond the laughs, Totally Killer works as a legitimate mystery, with enough red herrings and twists to keep audiences guessing the killer's identity. The 1987 setting is rendered with affectionate detail, from the synth-heavy soundtrack to the perfectly curated fashion, making it a nostalgic treat. For viewers seeking a smart, funny, and thrilling ride that pays homage to 80s slashers while subverting their conventions, Totally Killer is a must-watch. It's the perfect movie for fans who enjoy their horror with a heavy dose of humor and heart.