Got in to Doctor's house and rejected his offer. He refers to me as Lohse (I'm a custom build with a merc, Ifan & Fane in party). Fight starts with 4 adds plus nurses plus him with >22,000 physical, magical armor and health.

Jahan isn't in the basement
Malady offered me no candles
I can't kill him before he takes demon form (tried - he took no damage and instantly aggro's)

I'm assuming the quest is bugged.

Can this quest be skipped?