The Murder of Roger Ackroyd by Agatha Cristie

Think you know who dunnit? Think again.
 
Poor Roger Ackroyd. He knew the woman he loved had been harbouring guilty secret.

And then, yesterday, she killed herself. But guilty secrets rarely stay secret. Who had been blackmailing her? Had it really driven her to suicide? Sadly, Roger Ackroyd wasn’t going to live long enough to find out .