have one's back against the wall

have one's back against/to the wall AND with one's back against the wall (to have very serious problems which limit the ways in which you can act) — припертый к стене; быть припертым к стене; быть загнанным в угол

EXAMPLE: When his back was against the wall he became very aggressive. (CIDI) — Когда его приперли к стене, он стал очень агрессивным.