When Maddie McGuire finds herself tumbling over a cliff while hiking The Cotswold Way, she uncovers much more than ancient woods. Terrified by her shocking discovery, she returns to the safety of her international internship at the Roman Baths only to find competition in the form of the tittering, aristocratic Gwendolyn De Valence, who has captured the attention of everyone Maddie hopes to impress. Turning to her boyfriend Constable Edward Bailey, only reveals dark secrets about his past, leading her down a dangerous path which, this time, she may be unable to escape.