In the heart of Portugal's wine country, a sinister game of life and death begins.

When Filipa's beloved grandfather, Ricardo Monteiro, is brutally assaulted on their ancestral estate, the heiress finds herself thrust into a deadly race against time. "Follow the trail of the lenços... I love Ana!" His dying words hurl Filipa into a desperate quest for the truth.

As a chilling note warns of impending doom, investigative journalist Re Parkar enters the fray. From the shadowy vineyards of Penafiel to the olive slopes of Freixo Espada à Cinta, Re and Filipa chase the mysterious trail of Ana's love handkerchiefs, unearthing sinister secrets, even as they face off against a cunning adversary.

As the bodies pile up, Re must navigate a treacherous maze of deception to halt a nightmarish catastrophe.

But who is pulling the strings behind this deadly game?

And what dark connection does Ana hold to the Monteiro legacy?

The Mystery of the Portuguese Hearts is a psychological suspense tale of thrilling intrigue, love and sacrifice.