The story of an unlikely group of six women, united by their struggle with cancer, who come up with a wild idea: to hike up the Dôme de la Lauze mountain in the French Alps.

On a cursed island ravaged by a strange plague called "the Malaise," a king commissions his alchemists to develop a cure to save his people from the disease... but the antidote turns the kingdom's inhabitants into monsters! The king decides to create an army using this formula, but the situation quickly spirals out of control.

Successful writer Erica returns to her hometown, finding her friend Alexandra's dead body. Convinced it wasn't suicide, she launches an investigation entangling past and present, her life upended by meeting Captain Patrick Saab.