3 Hz Season 2

Felix and his friends use the walkman to find Sammy's cousin Robin, who left in 2012 for mysterious reasons. The adventure brings them to the Morgenster residence, where they meet Sera, who rents a studio there with her sister. They turn out to be victims of Marco Claes, a shrewd landlord and also Robin's former employer. It soon becomes clear that Marco has a dark secret... and that he is also looking for Robin.  

Robin appears to be living under a false identity. He has a lot to hide and the gang wonders if the reason for his departure was really pure. The search puts a lot of pressure on the friends and Felix is faced with a heartbreaking choice. 

What does Robin have to hide? Who will find him first, the bunch or Marco? What is Marco Claes' secret and can the friends unravel it in time to save the residents of Morgenster? Will Felix do what it takes to restore his friendship with Sammy?