There are rumours she murdered her first husband, rumours that she was blackmailed, and rumours that her secret lover was Roger Ackroyd. When Ackroyd is found murdered it is unlucky for the killer that Hercule Poirot is close by.

Setting up the traditional rules of mystery only to shatter them, this ingeniously tricky masterpiece startled fans, polarised critics, and stunned the Detection Club, the highly esteemed literary organisation, of which Christie herself was a member. One of the most famous detective novels ever written, and certainly one of the most controversial, The Murder of Roger Ackroyd was championed by Dorothy L Sayers who said, Christie fooled you (all)... It's the readers business to suspect everyone.

And you will.