SPOILER
In the end it's all about Sandi's treason, Dafoe remembering how she betrayed him, and how he let himself be betrayed (he found the key in her passport and at one time she disappears to get the apartment key...except the key is in the door as Dafoe finds out...he had all the signs that allowed him to realize she was going to betray him, still he didn't do anything) he was seduced in the same way Hiroshi was. He wanted to get away with herself and the money, and all he gets is a stab in the back, she's gone and there's nothing he can do about it except remembering all this in the dark room of New Rose Hotel (the way he remembers the sex scenes reminds me a bit of the character in "Strange Days" that remembers his happy past with the Juliette Lewis character through the mental video engine). Many will find the ending frustrating, and it is frustrating, it's about a man realizing he's been had.
In the end it's all about Sandi's treason, Dafoe remembering how she betrayed him, and how he let himself be betrayed (he found the key in her passport and at one time she disappears to get the apartment key...except the key is in the door as Dafoe finds out...he had all the signs that allowed him to realize she was going to betray him, still he didn't do anything) he was seduced in the same way Hiroshi was. He wanted to get away with herself and the money, and all he gets is a stab in the back, she's gone and there's nothing he can do about it except remembering all this in the dark room of New Rose Hotel (the way he remembers the sex scenes reminds me a bit of the character in "Strange Days" that remembers his happy past with the Juliette Lewis character through the mental video engine). Many will find the ending frustrating, and it is frustrating, it's about a man realizing he's been had.