Starvation Heights. The chilling true story of the doctor who starved her patients to death; Thread, 2023

In 1911 two British heiresses, Claire and Dora Williamson, read a brochure about a revolutionary fasting treatment that promised a lifetime of good health. The sanatorium in the village of Olalla, west of Seattle, was surrounded by a beautiful forest, sparkling waters and fresh air. The sisters agreed it sounded perfect and exactly the restorative holiday they needed.

But within a month of arriving, under the supervision of Doctor Linda Burfield Hazzard, Claire and Dora began to realise the frightening truth - they were not patients but prisoners at the isolated sanitorium.

Starved and on the edge of death, the sisters made several desperate attempts to escape. But only one would ever make it out alive.