Single mother Roz has reached breaking-point. After the dissolution of her marriage, her business has gone under, debts are racking up, the rent is late again, and she's struggling to provide for her nine-year-old son, who is starting to misbehave in school. When she returns home from work one day to find an eviction notice, she has two weeks to come up with a solution before they're kicked out. Roz is in trouble, real trouble, and she doesn't know where to turn. Then an unusual opportunity presents itself.

At her sister's birthday party, Roz meets Scott Elias--wealthy, powerful, and very married--and she leaves an indelible impression on him. So much so that he tracks her down and makes her an offer: to spend the night with him . . . for money. He wants no-strings-attached intimacy and can guarantee total discretion. With that kind of cash, Roz could clear her debts and get her life back on track. But how much is Roz willing to compromise in order to keep her family safe? As the seemingly straightforward arrangement grows ever complicated, Scott becomes obsessive and dangerously controlling, and Roz is forced to do things she never thought herself capable of in order to safeguard her life.

The latest page-turner from one of England's most captivating thriller writers, The Mistake I Made takes a gripping turn into a world of sex, blackmail, and murder within a tightly-knit community that is more familiar with solitude than scandal.