Jenny Kent and Bella Rossini were friends and flatmates with a lot in common, for one, they were both orphans. Bella allowed Jenny to use her name to get a job. So when she wakes up from a car accident that killed her friend, she finds she's been a victim of a case of mistaken identity as well. She decides that rather than lose her job and possibly be found by a very nasty guy from her past, she'd just continue on as Bella, thinking the other girl would want her to, and since they're both orphans, no one will be hurt.
Unfortunately Bella did have family out there, an estranged grandfather who, now at the end of his life, tracked down the son he'd disowned only to find that he was dead and only Bella was left. So he sends out his grandson Dante to bring her back to him.
Dante goes to bring her back so Jenny is forced to confess that she's not really who he thinks she is. But Dante refuses to hurt his dying grandfather anymore and instead coerces her into pretending to be Bella for what little time remains of the old man's life.
Jenny and Dante wind up growing fairly close and while they pretend to be cousins during the day, at night all bets are off.
This was actually a rather sweet story that I greatly enjoyed. It's nice to find a story that doesn't have to have horrible misunderstandings in order to make a story work.