Building on the phenomenal decade-long success of The Agatha Christie Company, which has sold over two million tickets around the UK, comes a new thrilling chapter from ‘the king of the detective thriller’ Edgar Wallace.

When Inspector Tanner is called in to investigate a ruthless murder at Mark’s Priory, the grand ancestral home of the Lebanon family, he quickly discovers that nothing is quite as it seems. The household is controlled by the family physician, the footmen behave more like guests than servants and the secretary Isla is afraid for her life. As Tanner moves closer to the heart of the mystery he uncovers a shocking and closely guarded secret…

Making his stage debut is Oliver Phelps (Harry Potter), and Deborah Grant who has starred in the BBC’s Not Going Out, Bergerac and Roger, Roger. With TV favourites Gray O’Brien (Coronation Street, The Bill, Casualty); Denis Lill (The Royal, Only Fools and Horses), Philip Lowrie (Coronation Street), April Pearson (Skins), Ben Nealon (Soldier Soldier) and Glenn Carter (Jesus Christ Superstar).

The cast is completed by Callum Coates, Owen Oldroyd and Rosie Thomson.

The play will be performed at York Opera House between Monday 9th July and Saturday 14th July.

Head to www.atgtickets.co.uk for more information and tickets.