The Murder of Harriet Monckton is based on a true story that shocked and fascinated the nation. On 7th November 1843, harriet monckton, 23 years old and a woman of respectable parentage and religious habits, was found mu...The Murder of Harriet Monckton is based on a true story that shocked and fascinated the nation. On 7th November 1843, harriet monckton, 23 years old and a woman of respectable parentage and religious habits, was found murdered in the privy behind the dissenting chapel she had regularly attended in bromley, kent.