Totally Killer (2023) delivers a fresh and entertaining blend of horror, comedy, and sci-fi that revitalizes the slasher genre with a clever time-travel twist. The film follows 17-year-old Jamie, who finds herself accidentally transported back to 1987 after the infamous 'Sweet Sixteen Killer' resurfaces in her present day. With the killer's original murder spree about to begin, Jamie must navigate the neon-soaked, hairspray-heavy world of the 80s to prevent the first killings and change her own future.

Kiernan Shipka shines as Jamie, bringing both comedic timing and genuine urgency to her role as a modern teen trapped in a decade she barely understands. The film excels at contrasting contemporary sensibilities with 1980s culture, creating hilarious fish-out-of-water scenarios while maintaining genuine suspense. Director Nahnatchka Khan balances horror and humor effectively, paying homage to classic slashers while injecting smart, self-aware comedy.

The mystery elements keep viewers engaged as Jamie races against time, and the 80s production design is both authentic and delightfully exaggerated. With its brisk 106-minute runtime, Totally Killer offers a perfect mix of scares and laughs, making it an ideal watch for fans of genre-blending entertainment. Its clever premise and energetic execution make it a standout horror-comedy that's both nostalgic and refreshingly original.