Louis Hartmann loses his father, a private detective investigating a string of murders, leaving him all alone. Rumor has it that the murders are the work of a Grave-Digger Vampire. Louis isn't keen on superstitions and vows to catch the culprit himself. That is, until a self-proclaimed detective, Arne Neuntöte, and his assistant, Lynn Reinweiß, appear. A new door is about to open for Louis…
E1
Louis Hartmann joins forces with the members of the Arne Detective Agency to investigate his father's murder.
E2
Lynn remembers the time she first met Arne and hired him to help investigate her father's suspicious behavior.
E3
Arne makes a shocking discovery about Lynn's father and Gordon reveals the dark truth of the Reinweiß mansion.
E4
Lynn and Arne are both troubled by surprise encounters that threaten to alter the course of the investigation.
E5
Lynn and Arne assemble the servants to review the clues and sniff out the killers through deductive reasoning.
E6
Louis Hartmann loses his father and vows to catch the culprit himself. That is, until Arne and Lynn appear...
E7
E8