Martin Sanders (Andres Bagg), a socially awkward recluse whose only entertainment comes from eavesdropping on other people's private conversations, gets a shock when he overhears the devilish plottings of a serial killer who lives in his building. Now, Martin knows the killer's voice -- but can he discern the murderer's face from a sea of strangers before he claims another victim? Virginia Lustig and Chris Longo co-star.

Thirteen friends gather to celebrate Vicky's birthday. This is the first time many of them have seen each other. Resentments, guilt, pain, and the fabrications of memory are revealed throughout the night. Shortly before blowing out the candles, we learn that Vicky's brother had died in a car accident during her birthday party... three years earlier.