Tamsin and her best friend Michelle have been inseparable since they were teenagers. Even now they spend all their time together, along with Patrick, Michelle’s perfect husband.

Tamsin and her best friend Michelle have been inseparable since they were teenagers. Even now they spend all their time together, along with Patrick, Michelle’s perfect husband.

So when Tamsin hears a rumour that Patrick is having an affair, she is incensed. Unwilling to ignore it, she plots a scheme to catch Patrick in the act, using her assistant Bea as live bait. It should be foolproof.

After all, Tamsin can trust Bea with anything. From her daily coffee order to fetching her dry-cleaning, writing reports and doing all the filing - Bea does everything with a smile on her face.

Except Tamsin has never considered Bea might have her own agenda.

And if she does, then Tamsin really needs to watch her back …