It starts with a party. It ends in murder.

Things are going well for Amy Mackenzie: her floral business is thriving, catering for some of the wealthiest families in the area. And none are more glamorous than James and Eleanor Elliot.

But try as she might to become part of their world, Amy is always on the outside - as invisible to them as the other members of staff who pass through their vast South London home every day.

Until the day of the party.

When Eleanor's sister Izzy is found dead hours before her own party, Amy is horrified when the finger of blame is pointed at her. Tasked with doing the flowers, Amy was the only person in the house when Izzy fell. The only person apart from Eleanor, that is.

Convinced the Elliots are trying to frame her, Amy resolves to find out everything there is to know about them and prove that they are the ones who killed Izzy.

After all, this isn't the first time Amy's been accused of murder, and she'll be damned if she's going to let it happen again.