Maya's attempt to host a murder mystery party is plagued with problems. Elliott wants to ditch the party for an Armani gala being held on the same night, Nina shows up with Maya's old boyfriend Derek, Jack wants to wear Elliott's costume, Finch is trying to make time with the caterer (who is dressed as a large-bosomed French chambermaid), and gamemaster Larry is a down-on-his-luck actor who spends most of the party on the phone with his agent. Everything is thrown into chaos when Maya's next door neighbor suffers a heart attack and drops dead -- and everyone but her thinks it's part of the game.

Maya organise une Murder Party. Les problèmes commencent quand son voisin est victime d'une crise cardiaque. Les invités prennent cela à la légère, pensant que son malaise fait partie intégrante de la soirée...

Maya logra convencer a sus compañeros de trabajo, tras mucho tiempo intentándolo, de que acudan a una fiesta de disfraces. En la fiesta cada uno de ellos debe jugar un papel y descubrir quién hace de asesino.