91: Kate Helm, David Mitchell, Daisy Johnson and more.

There's a Halloween feel to this week's show with,

Kate Helm on a courtroom artist who’s haunted by visions.

NB Dixon reviews a spooky thriller that ‘s about to hit the big screen.

Daisy Johnson reveals her personal affinity with Halloween. 

And David Mitchell takes us to a creepy, supernatural mansion and reveals that his characters write to him!