Until the Debt Is Paid (Jan Tommen Investigation, 1, Band 1)

Berlin detective Jan Tommen expected to wake up with a hangover―not a murder charge. But a well-known judge has been brutally killed and hard evidence places Jan at the crime scene. When disturbing gaps in Jan’s memory make finding an alibi impossible, the case against him looks open and shut.
Faced with life on the inside, Jan flees police custody to take refuge with an old friend deeply enmeshed in the capital’s seedy underworld. Hampered by a citywide manhunt, Jan soon finds that investigating leads while eluding capture isn’t easy. Before long, he’s relying on a team of misfits for help, including an icy blonde medical examiner and a brilliant but reclusive computer whiz.
When a lucky break leads Jan to connect the murders to a heinous trafficking ring, the team risks it all to find answers. Meanwhile, the body count continues to rise and the police department starts to close in. Desperate to prove his innocence, Jan must identify the true killer―before his time finally runs out.