The film Please Believe Me is based on a simple premise, that people who are from Texas have to be rich and vulgarly so in fact. When Deborah Kerr, a most prim and proper English lass inherits property in Texas everyone assumes she inherited something like South Fork. Especially after the English tabloids get a hold of the story and she goes sailing to the other side of the pond to claim her inheritance.
On ship three guys start buzzing around Kerr, playboy Robert Walker, millionaire Peter Lawford, and lawyer Mark Stevens. Walker has a real good reason for wanting to marry her, he's owing big bucks to gangster/gambler J. Carrol Naish so his courtship is tinged with some big desperation.
People will recognize the resemblance with this and the earlier RKO Ginger Rogers classic, Tom Dick, And Harry. If you think you know who Rogers winds up with after seeing that one, you'll be wrong. Please Believe Me also bears strong resemblance to another MGM film with Jane Wyman, Three Guys Named Mike.
Kerr's career in America was zooming into high gear at this time, she was doing a number of classic films like King Solomon's Mines and Edward My Son. This one is funny, but it seems like it was done as an afterthought, all the men and her happened to be free so let's do this property we've had sitting around for a while.
Funny, but Please Believe Me won't be on anyone's top ten.