There is no such thing as the perfect crime, but there are some crimes that go unsolved for a long time. They are called cold cases. The authorities run out of leads and clues to track down, and sometimes these old crimes go for years and even decades unsolved. The cases contained in Cold Cases Solved are some of these stories. Each case was finally solved after a long time. Some of the cases are old murders, and some are famous murders we have read about. Listen how the old crimes are reexamined, old evidence is subjected to newer technologies, and families learn about the fates of their lost loved ones.