offstage

Of or relating to that part of a stage not visible to the audience.

Of or relating to the private life of a celebrity.

Taking place offstage (as above).

To relegate (part of a play) to the offstage area, rather than showing it to the audience.

A boy has just murdered another one year older than himself, but Morgan offstages the event as a nuntius would the horrors of Greek tragedy.