Eliza and Martha are sisters. But that's where the similarity ends.

Martha appears to have the perfect life: two lovely children and plenty of money. Eliza lives in a rented, one-bedroom flat with her musician boyfriend Greg, and all her maternal feelings are lavished on her dog.

When Eliza ditches Greg and turns up on her sister’s doorstep, she expects to be swallowed into the sanctuary of Martha’s warm loving home. But Martha’s husband has just announced he’s leaving. For good. Proving to both women that a wedding ring isn’t a life raft.

Then Martha meets Jack, who is everything she’s never wanted, whilst Eliza is dating dozens of men in the hope of finding the perfect husband.

Suddenly the sisters are faced with the same challenge; is there such a thing as the perfect love? Or the perfect life?