It's 1984 and one of the hottest summers Yorkshire's seen. Mona is 15 years old. She's a drinker, a thief and a fruit machine addict. Things are already going badly in the pub where she lives with her obese step-brother PorkChop. But when Mona meets posh Tamsin Fakenham, a sassy girl with beautiful breasts, things very quickly get much worse.