Rachel Watts is an unwilling new arrival to Melbourne from the country. James Mycroft is her neighbour, an intriguingly troubled seventeen-year-old genius with a passion for forensics. Despite her misgivings, Rachel finds herself unable to resist Mycroft when he wants her help investigating a murder. And when Watts and Mycroft follow a trail to the cold-blooded killer, they find themselves in the lion's den - literally. A night at the zoo will never have quite the same meaning again.