At sixteen, Izzy longs to be like her older sister Ellie.

Ellie seems to have everything Izzy would like - a devoted boyfriend, highlights in her hair, a glamorous life style, loads of sophisticated friends, and at twenty-two she is treated like an adult by their parents.

However, for her birthday, Izzy receives the gift of a lifetime.

Ellie is going on holiday to Ibiza with her friends and she offers to take Izzy with her!

At last Izzy has a chance to hang out with an older crowd and do all the things she's dreamed of...Izzy uses this as a chance to pretend that she is much older, and she manages to catch the eye of Rex, one of the DJs on the island.

But can she keep up the pretence of being the same age as her sister?

Falling in love with an older man might be 'cool', but it has its hardships. And then a tragedy reveals everything to Izzy...