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YOU know it’s going to end badly for the Piranhas the first time we see them.

The teenage wannabe gangsters are sliding into a life of crime amid the grime of the backstreets of Naples.

We see them sell their first drugs, snort their first line, steal their first pistol and take their first life. There are lots of scooters, too, and moody rides through Neapolitan scenery, so it’s not all bad.

This subtitled Italian production is at its best when charismatic Nicola (Francesco De Napoli) hangs out with his 15-year-old mates, learning the ropes via video games and YouTube.

The easy money brings glamour, designer clothes and gangster-chic furniture for Mum. But the tragic arc is too obvious and director Claudio Giovannesi resorts to Mob clichés well before the bloody end. DENIS MANN