Man takes over anothers gigilo life

Kinda a darker flik. One guys leaves town for a trip. They accidentally switch cell phones. The innoccent guy answers the others cell...turns out to be high class lady paying for sex. He kinda take over the other guys life...making money to "service" ladies....after that I kinda get blurry as to what happens....want to see it lagain..please help me find this movie!!!!

Any idea when you saw this? Any description of accidental gigolo?

Deuce Bigalow: Male Gigolo has him housesitting a gigolo's place and falling into becoming a gigolo. It's a comedy, so I don't think this one fits.