Rosamunde Pilcher: Die Liebe ihres Lebens(2006)

Young Marian Simmons comes to Cornwall with her fiancé Timothy Carter to visit the house she inherited from her late mother Heather. No one knew of the existence of this romantically situated property on the coast. Not even Marian's father Robert, and there's a reason for that. Little by little, Marian realizes that her mother led a kind of second life in this house - with the love of her life.