This is a real fun movie that seems to capture the feel of some of Allen's "middle" work like Live and Death. A boatload of people are being carried by Mr. Death on a boat to their final destination in the afterlife. Two of the people start up a conversation. One was a newspaper journalist and the other a woman. The woman tells him that she was murdered by a high society gentleman. The reporter decides that this is the scoop of the century and must escape from Mr. Death so he can give the "scoop" to another reporter.
He materializes in the middle of a magic trick where Scarlett Johannsen is being made to disappear in a box. He tells her what he knows before he disappears. Johannsen enlists the aid of the magician (Woody Allen) to prove the allegations of the "ghost" and nail the "scoop" in the newspaper. Allen relucantly agrees to help only because he sees the ghost too.
The two pose as father and daughter and get in the good graces of the society man (Hugh Jackman). The rest of the movie unfolds as Johannsen and Allen try not to blow their cover and get enough evidence to implacate Jackman. In the meantime it gets more and more difficult as Johannsen has fallen in love with Jackman.
Johannsen is very likable with a personality similar to "Ugly Betty" and Allen still has good comedy skills and is sometimes hilarious as he does card tricks in front of very aristocratic people who are guests at several of Jackman's parties.