A conventional crime story is simple - it's just a corpse in the river or something, and a detective with an alcohol problem.

All I wanted to do was to follow my passion and tell a good story.

Alan Turing is such an amazing, tragic story.

There is no mystery to happiness. Unhappy men are all alike. Some wound they suffered long ago, some wish denied, some blow to pride, some kindling spark of love put out by scorn -- or worse, indifference -- cleaves to them, or they to it, and so they live each day within a shroud of yesterdays. The happy man dies not look back. He doesn't look ahead. He lives in the present.

To catch the bad guys, you've got to think like a bad guy - and that's why all the best detectives have a dark side...

I'm very bad at violence in real life. I can't stand it. And I'm so fed up with crime novels that have too much violence. I can't really do it. It's unnecessary.