Eva's astonishing discovery leads to more questions about Minke's disappearance. The Sphinx is forced to change her plans, while the doppelganger fights for her life. Meanwhile, detectives Asha and Fenna investigate Lena's family in Belgium and make an important discovery.

To unravel the mystery, Asha and Fenna must delve into both the Sphinx's and Lucas' pasts. In doing so, they discover that their lives are more connected than they expected. Lucas swears he's innocent, but is he really? The Sphinx prepares for an epic family reunion.