Imogen Brine is undeniably strange. Some would even say dangerous. She can make poisonous flowers grow from her fingertips and her "gift" is becoming harder to control. When she is invited to a secret island to be with other girls – girls with dangerous gifts of their own – it feels like the chance to finally be herself. Somewhere she will fit in. However, not long after her arrival, a deer is found dead with poisonous flowers growing from its corpse. And all eyes are on Imogen. Imogen knows she's been set up. Something on the island feels wrong – and it isn't just the friction with the other girls or the growing tension between her and the son of the island's head of security, Jack. As strange occurrences continue to rock the island, some more dangerous than others, Imogen realizes she will have to work quickly to learn what's causing them. Because things are about to turn deadly. And not all dangerous girls want to be friends.