1894, Wigan. Miss Dorothea Gadsworth is interviewed for a teaching vacancy at George Street Elementary, but is ultimately dismissed as a candidate. The following Monday morning, her body is discovered in a locked classroom with a note by her side. DS Michael Brennan is called in to investigate what appears to be a straightforward suicide, but his instincts tell him there is more to this case than meets the eye. With the door locked from the inside,...