Leonie's personal dating algorithm:

1. Over 6 ft Tall
2. Funny and carefree
3. Well-travelled

But when a dating app leads Leonie to one night in Paris with brooding stranger Jack - the total opposite of what she's looking for - she realises her list is missing out the most important thing: chemistry. And the chemistry between Leonie and Jack is off the charts!

Could the algorithm be on to something? When Leonie starts her new job at a tech start up the last person she expects to see is Jack. But there he is, sitting in the boss's office, the man behind the code and the best night of sex of her life...