BRENT CAVANAUGH (Nicholas Brendon) is a very disturbed man. After stalking his ex-wife, his architecture company transferred him to Japan where he fell in love with fellow American artist GRETCHEN (Natalie Lisinka). After a whirlwind romance, the two married and later moved to Philadelphia where they bought a house next to the HESS family – JASON (Vincent Ventresca) and CASEY (Chandra West), and their adorable son AUSTIN, 9.

But when Jason, a doctor with high profile clients, introduces Gretchen to a friend, SHANE, whose advertising firm is looking for an artist, life in the Cavanaugh house goes south very quickly. Shane hires Gretchen and begins to give her career advice, helping her find a professional identity that Brent never allowed her to have. Fearing that Gretchen’s become too independent and is planning to leave him for Shane, Brent hires thug LONNIE to kill her and Shane, making it look like a robbery. But that’s not the only score he has to settle. Brent blames Jason for introducing Gretchen to Shane and decides that if anyone deserves Jason’s beautiful wife Casey, it isn’t Jason. It’s him.

Unfortunately for Brent, the attempt to sabotage his neighbors’ marriage doesn’t go as planned and when he makes a move on Casey suggesting she leave Jason, Casey refuses.
Feeling the sting of rejection by yet another woman he’s fallen head over heels for, Brent breaks into the Hess home and attacks Jason and Casey—punishing Jason for instigating the ‘affair’ between Shane and Gretchen, and punishing Casey for choosing her husband over him. Trapped in their home with a killer, Jason and Casey must find a way to save themselves and Austin from the terrifying stalker who wants revenge…