In an unnamed city struck by civil unrest, a police strike triggers lawlessness, leaving citizens to defend themselves amidst growing violence. An aggressive neighborhood watch group seizes the opportunity to assert a brutal form of vigilante justice. During one night of chaos, the group focuses its attention on the residents of an apartment building, believing that the building harbors an obstacle to their malicious agenda. The harassment turns deadly as the watchmen begin to systematically eliminate building tenants.

Isolated and fearing for their lives, the tenants, including a divorcée and a gay couple, must overcome differences and come together to withstand the siege by the relentless neighborhood watch gang. Their struggle for survival becomes increasingly desperate as the watchmen's methods grow more violent and sophisticated. The apartment's inhabitants find themselves fighting not just for their lives, but for a society that seems to be rapidly disintegrating around them.