The Mask Murders (S01E07)

Fifteen years back, Flamant cracked a case involving a masked murderer. Now, a similar crime has emerged, raising questions about whether it's a copycat or if Flamant apprehended the wrong suspect. While recuperating in the hospital, Professor T lends his assistance to Flamant despite his own health issues. Meanwhile, Annelies's father unexpectedly arrives, clearly confused, prompting her to recognize the necessity for a more sustainable solution to their situation.