When they discover a way to bring the dead back to life, their attempts to build their park in the land of the living pulls Kat into a quest to bring her parents back from the dead, the evil prison corporation into a plan to finally decimate the small town and build their ultimate school-to-prison pipeline. Thrown in are demon hunters, school cliques and possession-based super powers; this is not a film to just put on in the background. Hopefully the sheer amount of backstory and complex characters is enough for a sequel or a spin off.

Race and gender are core facets of the story, with the protagonist Kat being a black or African American girl. The prison system and anti-black racism in the US are inseparable, and Jordan Peele's groundbreaking debut as a director was the racism themed horror Get Out. Whilst the demons are Key and Peele and half of the villainous power couple is a black man, Kat being black is integral to the prison criticism theme. Likewise, the school is an all-girls school taught by nuns, and it's all but said that demon possession and the superpowers it comes with is a female-only experience. This centring of women in terms other than sexuality/relationships or stereotypically 'feminine' traits such as being supportive or cute, is still a bold and important decision, especially one for a mainly male writing and production team to have made.

Another powerful choice was made in regards to gender, and one that they could have easily not have included without any effect on the plot: Kat's friend and ally is her fellow pupil Raul. A boy at an all-girls school, there's a quick scene where the clique call him his old name and say its hard to get used to and one where his mother corrects an unheard voice on the phone that she has a son, but aside from that this canonically trans character is completely accepted as a boy called Raul by every single character. It's a lovely inclusive detail and a perfect example of trans characters not being defined by their gender, as he's an artist and one of the few characters not to have shady or conflicted motivations.

Of course, it's hard for an adult without children to judge a children's film. Will kids love it? Will it's important messages be lost on them or too much for them? I can't say, but I do know a lot of children's films are quick buck garbage full of toxic messages or simply advertising, so it's definitely worth trying it. It's a good child-friendly horror and entertaining for adults too. 

When the name of the film itself is a reference to two others (the book Slaughterhouse-Five and the film The Cider House Rules) it's practically a Where's Wally of references. References to Harry Potter abound, and the dialogue references Goodbye, Mr Chips, 300, Freaks, Braveheart. and even Fifty Shades of Grey.

The plot is simple and classic; working class boy goes to public school, and his fish-out-of-water story is disrupted by a monster attack. Three doomed romance subplots, some character rivalries and a Chekhov's lighter; Pegg, Frost and Sheen are having a whale of a time under writer and director Crispian Mills. 

It's pretty funny, it's a little bit scary, and it's exciting. Well worth an afternoon.