Zoe Swift was a happily married maths teacher chatting to a charmingly funny young man at a summer wedding when a phone call changed everything…

Now a single parent to two devastated teenage children, Zoe is still reeling from the discovery of her husband's betrayal when she bumps into the same young man in the staff room at the start of term in September. Tasked with showing Jack how to control a rowdy roomful of hormonal Year 8s and get them to vaguely pay attention, Zoe can't ignore the sparks that fly between her and the hot new supply teacher.

Soon their undeniable chemistry and Jack's steadfast support at a tricky time leads to dinner dates, sexting chicken emojis – and a serious dilemma for Zoe.