This interview-style podcast investigates the mysterious death of King Boris III of Bulgaria in 1943. The episode begins by setting the historical context of World War II and Bulgaria's precarious position, then introduces interviews with the King's children, who share personal anecdotes and suspicions about their father's death. The investigation explores various theories surrounding the King's death, including poisoning and potential involvement from Hitler or other political entities. A key detail highlighted is the six-day duration of the King's illness, contradicting the official cause of death as a sudden heart attack. The podcast concludes by leaving the question of the King's murder unresolved, suggesting that further investigation is needed.