Waking up in the middle of the night, Harvey expects to see the quiet neighborhood street outside his bedroom window. Instead, he finds himself staring face-to-face with a live capuchin monkey! Before he can even process the absurd surprise, Harvey and his bossy cousin Nora are plunged headfirst into a fast-paced neighborhood mystery. As the cousins set out to find the monkey's rightful owner, they quickly realize this is no ordinary lost pet case. A suspicious, shadowy figure is trailing the monkey's every move, turning a simple rescue mission into a thrilling game of hide-and-seek. Harvey and Nora will have to put their constant bickering on pause to outsmart the mysterious prowler and keep the adorable animal safe. This action-packed caper perfectly blends hilarious family tension with a genuinely exciting puzzle for young detectives.