If this is a non-fiction true crime book, like "Océano Exclusive" often does, then the user might be looking for a deep feature (an in-depth analysis) about the events covered in the book. But without the exact title, it's hard to be sure. There's also the possibility of a typo or misunderstanding in the title. They might have meant "Lorena Berenson" or another similar case, which Océano has covered.