if a legal case or problem is open and shut, the facts are very clear and it is easy to make a decision or find a solution.

The police think the case is open and shut: five witnesses saw the man stealing the car.

It's going to take a lot of work to deal with this problem. It certainly isn't an open-and-shut matter.

• the rank and file
• the real McCoy
• there and then
• There are no flies on .
• There are no flies on someone.
• There are plenty more where that came from.
• There are plenty more where they came from.
• There but for the grace of God .
• There but for the grace of God go I.
• Thereby hangs a tale.
• the received wisdom
• the red-carpet treatment
• the red-light district
• Therein hangs a tale.
• There is more to someone than meets the eye.
• There is more to something than meets the eye.
• there is never a dull moment
• there is no such thing
• there isn't a [mean, jealous, unkind etc.] bone in body
• there isn't a [mean, jealous, unkind etc.] bone in someone's body
• there is safety in numbers
• there'll be hell to pay
• there's a lot to be said for
• there's a lot to be said for doing something
• there's a lot to be said for something