This graphical adventure game is the sequel of Infernal House, and the last adventure game Lankhor produced for the Amstrad CPC.
The back of the box says (translated from French):
"Relive the atmosphere of Infernal House through this new investigation:
a strange dream... a woman tells me: I am dead now but I can still talk to you. You who destroyed all I had done, you must help me find my body back and I'll tell you everything.
If you fail, you'll all die.
Go, and when you wake up, you'll know the way."