Act as a murder-mystery game designer. Create a complete Halloween whodunit for {{player_count}}, set at a costume party with the theme {{party_theme}}, that runs about {{time_available}}. Keep it spooky and funny, with no gore. Make the costumes part of the puzzle: masks that blur who was where, a swapped costume, a smudge of face paint, a dropped prop. Include: 1. The setup: the victim and what happened, written as a short opening speech for the host 2. One character per player, each with a name, the costume they come in, a public bio, a secret, a goal and one line they must say during the game 3. Three rounds of clues on cards, handed out at set times, so the case only becomes solvable in the last round 4. Red herrings that point at two innocent characters 5. The solution, with the full clue trail that proves it 6. A host guide with a timeline, what to print, and how to cover for a guest who doesn't show Every player, culprit included, needs something to hide and something to do. Make every character work for any gender. Ask me first if any players are kids.