The series follows journalist Daniel Mandelkern as he travels to Italy for an interview with celebrated writer Mark Svensson, who lives by a secluded lake. Daniel is intrigued by the mysterious story of Mark, his friend Tuuli and Tuuli's missing partner Felix.
It's a story of a strong bond between three people that starts in South America and travels across the Artic Circle to New York on 11th September, ending with a catastrophic loss. Daniel thinks he recognises these people from Mark's novel, however something is not quite right and as he delves deeper, he makes a shocking discovery.
Moominvalley is an adaptation of Tove Jansson's loved body of work. The protagonist of the series is Moomintroll, who is curious, kind, sensitive and idealistic. He is a typical hero in a coming-of-age story: he tries to tackle the puzzle of growing up to his true, individualistic self while remaining a beloved part of the family.