Henry (Billy Crudup) is an odd bird and then some. Admittedly, having OCD is a handicap to anyone but H is also insulting, crude, and hard. It is indeed a great stroke of luck that he is a talented writer, which was recognized by his only pal, Rudy (Tom Wilkinson). An artist, Rudy worked, undeterred, in forming a collaboration with Henry on a hit series of children's books about a beaver named Martin. At book signings, though, Rudy has to keep a close watch on H, for he often ends up insulting those eager to buy his work, even kids. Sadly, just as the two friends are working on a Christmas book, Rudy develops a brain tumor and dies. Now, their editor is in dire straits. He must finish this book, to save his own neck and that of Henry, too. So, without much choice, this editor finds another illustrator, Lucy (Mandy Moore) who is talented enough to continue the look of Martin's character. But, horrors! With Henry a problem child, who discourages Lucy at their initial meetings, how will there be any hope of a finished book? Lucy is offered even more money to endure Henry's whims, money she desperately needs. Also, there are two other problems. One, an old flame of Lucy's, Jeremy (Martin Freeman) returns to try to win her back, making Henry jealous, yes, jealous! Also, Henry keeps talking and consulting Rudy every day, in his mind. When will he let go? This, obviously, is a complicated film with honorable themes. Henry's distinct personality disorders are to be pitied yet his prickly and seemingly uncaring attitude make it difficult for others to like him. Lucy is no different. As the two main characters, Crudup and Moore do wonderful work indeed. Wilkinson shines as well; in fact, I don't believe this gentleman could give a bad performance ever. All of the supporting crew, including Diane Wiest, are fine, also. As for the Manhattan sets, they are always welcome while costumes, photography, script and direction have their strong points, too. In fact, the story is a great look into the reality of life in Henry's world. Therefore, those seeking a glimpse into the affliction of OCD would benefit from a view. But, in addition, fans of romantic comedy and/or drama, even in the most offbeat of circumstances, will likewise be glad they brought this one home.