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Ruben is a successful salesman.

Roz hates her boring admin job.

Ruben owns his own home.

Roz still lives with her nasty mum and dad.

One is a serial killer, the other desperate to learn the trade.

When high-school misfits Ruben Jones and Roz Smith's paths cross later in life, they see something in the other no one else has and they team up to form a friendship based on the one thing they have in common – murder.