When podcast producer Dave Pickering is approached by his dad with a mystery from the life of a long-forgotten friend, he decides to investigate it in the only way he knows how: by having conversations.

Mark Sullivan, who went missing 15 years ago, has been found dead. His body still has the arm he should have lost in a car accident and seems to have died eight years before he disappeared.

In a series of 12 episodes, Dave tries to uncover this mystery through conversations with Mark's family and friends. As he gets to know them, his questions lead to more questions… th...