The Unpredictable Past

When a mysterious man, Will, moves into the house opposite hers, Elizabeth's quiet village life is turned upside down.
Their friendship develops when Will helps with researching the involvement of one of her ancestors, Edward, in the last revolution in England.
This friendship sets the neighbours gossiping and infuriates Elizabeth's daughter, who is convinced Will is a con man preying on her mother, thus raising doubts in Elizabeth's mind.
Elizabeth and Will delve more into the past and attempt to solve the mystery surrounding the death of Edward's son, Edmund.
How can Elizabeth find out the truth about Will? Is he who he seems?
Does any of what he has let slip about his unpredictable past make sense?