Synopsis

16-year-old Liv usually loves summer with her grandfather on the Danish island, Bornholm. But this year everything is different. Her family is falling apart and Liv is travelling alone. She longs to get away from the familiar and travel the world to realise her dream of becoming a photographer.

To avoid wasting her summer, she gets a job at her mum's friend's hotel. She bitterly regrets it when she realises she'll be working with Oskar, who has always haunted Liv's summers. But when they discover a hidden room in the attic with old postcards from the mysterious sender ECHO, Liv and Oskar become entangled in a mystery that connects the secrets of the past with their dreams for the future.

Who is Echo and why does it feel as if the postcards speak directly to Liv.