Independent landscape engineer Tom Baxter's home is suddenly invade by a criminal trio. The leader Jack, who uses code name Alpha, makes Tom help his lover Beta with a break in. Jack's 'playful' prison friend Omega (28) is put in charge of scaring Tom's wife Faye, bright and well-behaved but asthmatic preteen son Nick and brat daughter Alexandra 'Alex' into obedience. Both parents have a dark past, and Tom's weighs on vindictive Jack.