locked in, shut in
Alguien ha hecho algo y por eso nos tienen encerrados.
Someone has done something, and that's why they're keeping us locked up.
— [REC] (2007)
Chas tiene a los niños encerrados como a conejos.
Chas has the children locked up like rabbits.
— Los Tenenbaums. Una familia de genios (2001)