Rachel can't imagine why Bucky Greene, a scientist friend of her father's who's developing genetically engineered bananas, would show up at their New York City apartment in the middle of the night to leave a baby chimpanzee with them for a week -- or why they absolutely, positively can't tell anyone about it. What could possibly be "top secret" about an adorable chimp like Friday?Rachel hasn't a clue, but when Friday turns out to be really, inexplicably...