The Escape Room by Megan Goldin
It's a team building exercise they believe. They're ruthless on Wall Street, but it's bonus time and somethings may not be as well as they'd hope. When Sam, Sylvie, Jules, and Vincent get an email that they are to meet up at a specific location, they jump. They're used to jumping, even if it means messing up plans with wives, boyfriends, and just about anyone else they know.
The escape room challenge seems easy enough. Solve the puzzles and get out of the elevator. Some of them soon learn that they may not make it out alive.
Here's a situation where I spent a lot of time rooting for the person I was sure was behind the creation of the escape room. This book is twisted and dark, but I never felt sorry for the four trying to escape the elevator. In fact, I was cheering every time they struggled to solve the next clue. I had them solved and knew what would happen next. There were no surprises. It was just an entertaining read from the first page to the last.
Sam, Sylvie, Jules, and Vincent are just not likable people. They're ruthless and enjoy stomping on others to get to the top. That makes them easy to hate. I liked the puzzles, loved the plot, and was very satisfied when it all reached the final page.