Jamie Dornan spent nights reading with wife for 'The Fall' role

Jamie Dornan became a bookworm and kept his wife up all night reading, to prepare for his role in TV show 'The Fall.'

The 32-year-old Irish actor, who plays a sexual psychopath killer called Paul Spector in the BBC Two drama, said that the writer had given him a list of books which would help in getting into the character, and he spent evenings with his wife in bed together, reading, the Daily Star reported.

Though there were a lot of books, Ted Bundy was "fascinating," he added.

Dornan, who admitted to be a bit scarred by the dark role, also said that it had changed his life and helped him land lead in 'Fifty Shades Of Grey.'

The show, which would soon be back with the second season, has become BBC Two's highest rated drama for 20 years.