Jennifer Aniston stars as a woman who decided she wanted to becomes pregnant through self insemination through a turkey baster. What she was expecting was that the sample would come from a married friend's. Incidentally, her best friend was also present at the insemination party, and after getting too drunk, decides to switch the sample with his. Seven years have passed, and these two best friends finally met again along with her child. It was difficult to hide the reality specially since the child seems to manifest traits and mannerisms that are similar to his.

The Switch movie trailer HD

Only later did he realized that all along, he had this feelings for her.