OK, I'm a very pragmatic and practical person...but I had to laugh!
"Morpheus" as you say has cropped up a couple of times in jooish cinema: "Forbidden Planet", "The Matrix", but is not a Daemon to my knowledge (and I have a pretty big data library of them).
My guess is that this is an angel or mischievous entity. Ask him to swear his loyalty to Satan. Then ask him to recite the names of the four Princes of Hell (they usually choke on that).
The bottom line being, that you're being jerked around...sorry!
Hail Satan!