In the West End of 1950s London, plans for a movie version of Agatha Christie's hit play 'The Mousetrap' come to an abrupt halt when the Hollywood director is murdered.

World-weary Inspector Stoppard (Sam Rockwell) and eager, inexperienced assistant Constable Stalker (Saoirse Ronan) take on the case - a puzzling whodunit within the glamorous theatre world.

Witty, fun thriller with superb ensemble supporting cast including Adrien Brody, Ruth Wilson, Charlie Cooper, Reece Shearsmith & David Oyelowo.