UK and US sales company InFrame, a division of Hollywood Classics, has picked up worldwide rights to the $5m thriller The Riddle and will start sales at Berlin's European Film Market.

Brendan Foley wrote and directed the story of a journalist, a police press officer and a tramp who who solve a series of murders inspired by an unpublished Charles Dickens novel. The cast features Vinnie Jones, Derek Jacobi, Julie Cox, Mark Asante, Gareth Hunt and Vanessa Redgrave.

The Riddle was produced by Lars Hermann, Mark Moriarty, Peter Burrell and Chris Chrisafais in conjuction with Grosvenor Park.

InFrame's slate also includes Sean Hogan's Lie Still, Oliver Rihs' Black Sheep and Valeska Grisebach's Longing (Sehnsucht).