The year is 1845, and Emily, Charlotte and Anne Bronte are sat around the dining room table, laughing merrily as the rain of their Yorkshire summer falls outside. When their brother, Branwell, returns from The Bull Inn, he brings with him the most shocking revelation: that Elizabeth Chester, wife of Robert Chester and mistress of Chester Grange, has gone missing - but the bloody scene found in her bedroom suggests she may have been murdered.
The governess at Chester Grange is Matilda French, a close friend of Charlotte's, who resolves to pay her a visit the following day. At Chester Grange, the sisters make the acquaintance of Robert, a rumoured cruel man, who is suspected of having driven his first wife to suicide. Determined that he should be brought to justice, the sisters throw themselves into solving the case.
As everyone knows, solving a murder requires sense, morals and a very good imagination - qualities which these sisters have more than enough of....