Justine Fielding (Tuppence Middleton) is head girl at her plush British grammar school - gorgeous, intelligent and with a university place waiting, she decides to let her hair down and agrees to a date with in-crowd charmer Alexis (Dimitri Leonidas). However, she soon discovers that the popular kids are hiding a dark secret - last year, they bullied one student so viciously that he took his own life, and now he's a zombie ghost hell bent on exacting his revenge.

Click 'play' below to watch the cast chat about their roles, whether zombie ghosts can really exist and going to Sharon Stone's birthday party.

Tuppence Middleton, Larissa Wilson, Dimitri Leonidas



Alex Pettyfer, Tom Hopper



Calvin Dean, April Pearson, Georgia King

Warning: This interview contains spoilers that some readers may prefer to avoid.