I don’t know a lot of Spanish so I’m not super confident on deals but here we go lol
!!!MASSIVE SPOILERS!!!
The duke is the serial killer. He kidnaps Louis and then goes CRAZY when he hears Louis is pregnant. Louis figures out the duke isn’t the father and also that the duke drugged him the night of the party. The prince saves Louis from the duke. Then the prince figures out he’s the dad after the duke is screaming that Louis doesn't know who the dad is (this part was a bit hard to understand so I’m not totally confident). the prince then locks Louis up (in a nice room but still..he’s locked in)
someone spoil me please TT