In depth stories and investigations.
How did the anti-vax movement get so big?
An early morning raid, a smashed-up palace and a missing solid gold toilet.
File on 4 Investigates: News-making original journalism.
A man denies he’s Stakeknife to the press, but a forgotten tape comes back to haunt him.
Amy and Katie's lives fall apart as their client seems to face an unthinkable crisis
World of Secrets has new seasons on their way. Also, hear updates on past investigations
