How much grief is too much? How far should we go to avoid pain? From the author of the international bestselling novel Agatha comes a literary thriller about grief, love, science, and societal norms. A Danish university research group is finishing its study of a new medicine, Callocain: the world's first pill for grief. But psychology professor Thorsten Gjeldsted suspects that someone has manipulated the numbers to hide a disturbing side effect. When...