Dead Community Guild (1970)

Radiation has left most of the world uninhabitable. Dwindling resources have caused what's left of the population to become more ruthless and barbaric. Mysterious radio transmissions offer a ray of hope, inviting people to join their community, promising them a better life. Two sisters, desperate to leave the scars of their past behind, search for this town and a new beginning. However, what they find there will forever change them and everything they thought they knew.