How tangled can a romantic web get?

When gruff mountaineer Dominic Hartington-George seeks sponsorship for his latest expedition, his London PA insists on a more media-friendly profile - like dating celebrity supermodel Zeb Z.

Zeb can't make the date, so he asks his identical twin, Aidan, to stand in for just one evening. Aidan, a struggling playwright, shuns the limelight to the extent people don't even know Zeb has a sibling, but he reluctantly agrees.

When the deception has to continue beyond the first date, Aidan fights to keep up the pretense. Dominic likes his sassy, intelligent companion, and Aidan starts falling for the forthright explorer. But how long can Aidan's conscience cope as confusion abounds? Will coming clean as "the other twin" destroy the trust they've built?