"Grandma was registered as Gerlőczy Emília and the first part of her life , which was between 1915- her birthdate- to 1937, so this part is merely mentioned in the first part of the journal, and then, surprisingly the entries are about some Guttmann Ernő, whom she met in 1947 at a ball in Pest. Guttmann Ernő – according to the booklet – met the Devil."Three friends discover a dark secret after their friend's - Dani's - death, which triggers unforeseen events including the Devil, a secret group and a curse from the past. The story is set in present-day Budapest, Hungary. After a way too long night, the youngsters sets out to find a diary in Dani's Grandma's flat, with the help of which they only find disturbing answers. And more questions, as well.