When busy trainee doctor Alison Hewitt joined a dating agency in 2010, she had no idea that her actions would set in motion a terrifying chain of events that would threaten the lives of her and her family. She thought the man she was meeting was a respectable Canadian businessman living in London called Al Amin Dhalla. At first their relationship blossomed, but soon Alison's mother Pam grew suspicious of the man who seemed to harbour many dark secrets. Pam turned Miss Marple, hired a private investigator to find out more and soon realised that Dhalla's entire life story was based on lies. It was only when Alison finished the relationship however that the real Dhalla emerged. The family soon found out that Dhalla - classed as a narcissistic psychopath - would stop at nothing to win Alison back.