Spring has arrived in Long Farnden and with it, a mysterious infestation. Lois Meade's daughter has found her village store overrun by insects and reptiles. And Lois has no time to stop and smell the roses if she's to stay one step ahead of the creepy crawlies. As Lois looks into the invasion, she becomes embroiled in yet another case. Her investigation leads her to Robert Pettinson, a seemingly unhinged zookeeper, and his nephew. The two of them are knee-deep in illegal trade and they don't take kindly to Lois poking her nose into their business. Lois enlists the help of her faithful cleaner Dot Nimmo and police inspector Hunter Cowgill to discover more about Pettinson and a suspicious death at the zoo. And death is in store for more people, if Lois doesn't put the killer behind bars soon.