Over a thirteen year period, a seemingly mild‐mannered male nurse, Malcolm Webster, set about poisoning and murdering his first wife, attempting to do the same to his second wife and moving on to a further scheme to deceive his third fiancée.
Episode 1
When Claire Webster challenges her new husband Malcolm about his wild spending, he decides to silence her once and for all.
Episode 2
Now married to Felicity and living in New Zealand, Malcolm Webster plans to to drain her bank account of her hard-earned savings.
Episode 3
Webster continues to evade capture and plans to bigamously marry Simone, while DI Henry is being thwarted at every step of his investigation.
