It's the middle of a long hot summer on the French Mediterranean shore. The town is full of tourists and at the Perpignan police headquarters, Sebag and Molina, two tired cops who are being slowly devoured by dull routine and family worries, deal with the day's misdemeanours and petty complaints. But out of the blue a young Dutch woman is brutally murdered on a beach at Argels, and another disappears without a trace. A serial killer obsessed with Dutch women? Maybe. Gilles Sebag finds himself thrust into the middle of a diabolical game.