You are a mad, demented evil scientist getting revenge on John Smith, a secret agent that has thwarted your plans one too many times. Intent on making Mr Smith suffer, you decide to capture his family and imprison them in your ice-prison. This ice prison is simply a roughly 2m by 2m by 1m cuboid with a human body in the middle (or thin enough such that the outlines of the body is visible). Mr Smith will, upon your invitation, go to the abandoned warehouse in the middle of nowhere and see his family as frozen, human trophies of yours.
How do you freeze humans inside said ice cube with them staying alive?
The ice surrounding the body must be entirely frozen
A few holes and maybe an air bubble surrounding the face is fine
Also, if staying alive in such conditions is possible, how much air does a frozen person consume per hour, if any?