Analysis of Nothing to see here

A simple house on a quiet street,
No one knew of a room discreet.
Down some stairs behind a dresser,
Lay a chamber of a forgotten aggressor.
A decade sealed, its secrets sleep.

The attic now a confidential space,
With gears and cogs all over the place.
A man of cunning and tinkering mind,
To a world of hate, he could not stay blind.
Fighting now in a clockwork arms race.