In this episode today, we explore the chilling series of unsolved poisonings known as the Paraquat Murders or the vending machine murders, where an everyday convenience of accessing a quick drink became lethal, victims were chosen at random, and a nation known for its safety was gripped by fear.

With no arrests, no clear motive, and no single suspect, this case remains one of Japan’s most disturbing mysteries, a horrifying reminder that even the most ordinary moments can hide something deadly.

It was 30th December, 2000, four members of the Miyazawa family were murdered inside their home in Setagaya, Tokyo, Japan.

The case remains unsolved.

The investigation identified the killer’s DNA and uncovered numerous clues about their movements and behaviour inside the house.

None of it has led to an arrest.

What happened on that night? Why was this family targeted? And why did the perpetrator get away with it, whilst so much evidence was left behind....

Tonight, we travel to the quiet, forested island of Pulau Ubin, Singapore, a place that feels frozen in time, where the jungle hums, the quarry lakes shimmer, and the past refuses to stay buried.

Hidden deep along a dusty trail stands a shrine unlike anything else in Singapore. It’s filled with dolls, lipstick, perfume, and offerings meant for a young woman whose real name… we still don’t know. Some say she was running for her life when the British came to arrest her family at the start of World War I. Others believe she slipped, fell, or perhaps chose her own fate on the cliffs above......