Watch Sam Smith's Video for 'I'm Not the Only One' Starring Dianna Agron

Grab your tissues.

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In his new video for, "I'm Not the Only One," Sam Smith addresses cheating and its ever-calamitous ramifications. The heart-wrenching video stars Dianna Agron, a wife whose husband, played by The Mindy Project's Chris Messina, is carrying on an affair with another woman. Agron's lets out her emotional anguish and anger by drinking heavily and setting his clothes on fire set to the sounds of Smith's soulful croons. Watch, below: