Now adapted into the worldwide hit movie THE CALENDAR KILLER - available now on Amazon Prime.

One call to change your life. One night to lose it.

For women walking home alone late at night, Berlin''s Walk Me Home helpline provides a reassuring voice at the end of the phone.

When Klara calls the helpline one Saturday night, Jules answers. He has never experienced a call quite like this one.

Klara is terrified. She''s being followed by a man from her past. A man who wrote a date in blood on her bedroom wall.

Tomorrow''s date.

As Jules is drawn into Klara''s nightmare, will either of them ever make it home again?

Reviews for Sebastian Fitzek

''Fitzek''s thrillers are breathtaking, full of wild twists'' Harlan Coben
''Fitzek is without question one of the crime world''s most evocative storytellers'' Karin Slaughter
''A true Master of his craft'' Chris Carter