closet case

build a case

to compile evidence that supports a charge against someone.

case the joint

To thoroughly observe or examine a place, in order to familiarize oneself with its workings in preparation for criminal activity, often robbery.

catch a case

To be infected with a disease; used with of.

come out of the broom closet

To publicly reveal that one is a Wiccan or some other type of neopagan.

come out of the closet

To disclose to others about one's sexual orientation, romantic orientation, or gender identity, where previously this had been kept secret.

federal case

An exaggerated ordeal; excessive fuss or indignation about some situation.

gone case

Someone or something that is deemed irredeemable, hopeless and beyond help; a doomed person or thing.

I rest my case

The previous statement or proclamation encapsulates my view.