Set in Stockholm, St Petersburg and Helsinki, The Underworld Trilogy tells three stories about drug trafficking and money laundering from three perspectives: the cop, the lawyer and the prisoner. Each story is an uncompromising and thought-provoking thriller in its own right and can be screened as an independent mini-series. Together, the three stories provide a true-to-life picture of the global drug-trafficking scene between East and West, and the money laundering that is associated with this brutal trade.