Underworld kingpin John Morgan (Billy Murray) returns to London from his perfect life abroad, reigniting a feud with vengeful cop Frank Conway (Nick Moran) who is obsessed with bringing him down and setting in motion a power play with his brother (Frank Harper). The Morgan family gather in John's plush apartment to meet their daughter's new girlfriend Zoe (Lucy Aarden) but all is not what it seems and her arrival triggers a deadly game of cat and mouse ending in revenge and murder, as the family are trapped in their own home by a gang of heavily armed intruders.
