With his stunning debut album In The Lonely Hour, British crooner Sam Smith is quickly establishing himself as the king of emotional heartbreak. Today (Aug. 1), he released his latest music video for "I'm Not The Only One," featuring a heartbroken Glee star Dianna Argon and a cheating Chris Messina of The Mindy Project.

With director Luke Monaghan taking a pretty straightforward approach with the song's lyrics, Argon is not "the only one" her husband is spending his time with, and she takes the song's four-and-a-half minutes to lament the state of her marriage.

Putting on her old white wedding dress, Argon tearfully crumbles to the floor, sobbing as she knows he man is out with another girl. She drives around town, looking for something while drinking in convenience stores, before ending up back at her own home and burning Messina's stylish suits to a crisp.

All the while, Messina is out with a mysterious brunette beauty, sexing the day away, though his eyes clearly show he knows he's doing wrong.

In the end, well, what can Argon do? She greets Messina back home with a cold smile and pain in her eyes.

Such a tragic life, set to the tune of Sam Smith, of course.

Watch the new music video for Smith's "I'm Not The Only One" below:

"I'm Not The Only One" is the latest music video from Sam Smith's debut album In The Lonely Hour. Previously, the record was supported by singles "Stay With Me" (which is sticking around at No.3 on the Billboard Hot 100) and "Leave Your Lover."

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