Elmo, Cookie Monster, Big Bird, Oscar the Grouch, Grover, Count von Count, dark, eerie, abandoned Sesame Street set, creepy puppets, torn and worn costumes, dim red lighting, foggy atmosphere, old rusty gates, crumbling brick buildings, spooky shadows, haunted trash cans, eerie whispers, distant screams, foreboding close-ups, Dutch angle shots, vintage horror movie aesthetic, grainy film texture, 1970s retro vibe.