On March 29th 1951, 28-year-old Palle Hardrup (Cyron Melville) attempted to rob the Nørrebrogade branch of the Farmers Bank in Copenhagen, leaving the cashier and manager dead in his wake.
However, his swift arrest and confession was only the beginning of the story, when it was claimed that Hardrup had been hypnotised into committing the crime by his former cellmate, Bjørn Schouw Nielsen.
In 1954, Palle Hardrup was sentenced to a secure psychiatric facility without parole, and Bjørn Schouw Nielsen was handed a life sentence. They were both released in 1967.
The Guardian Angel, which is currently filming in Zagreb and scheduled to film scenes in Copenhagen, is slated to premiere in 2018.