Dispatches reveals the shocking conditions that tenants of one of Britain's biggest social landlords are being forced to live in. A year-long investigation finds that Sanctuary Housing left family homes in disrepair. The programme uncovers evidence that this had a critical impact on the health of some of their most vulnerable tenants. As the housing association has grown, official channels of complaint have failed to force it to act reasonably, leaving residents feeling voiceless. In desperation they've turned to social media to share their experiences and offer support. Dispatches asks: are housing associations the new landlords from hell?