The film stars David Tennant and Robert Sheehan, with Carlito Olivero, Kerry Condon, and Jacqueline Byers in supporting roles.

Sheehan portrays the title character, a parking valet who burgles the houses of the drivers he services, only to discover one of his rich customers (Tennant) is a serial killer.

[3] While working as parking valets at a restaurant, Sean Falco and Derek Sandoval secretly use the cars entrusted to them by customers to burgle their homes.

On one night, however, Sean finds more than he bargained for when he breaks into the house of wealthy patron Cale Erendreich and discovers a woman named Katie being held captive.

[11] In the United States and Canada, Bad Samaritan was released alongside Tully and Overboard, and was projected to gross around $2 million from 2,007 theaters in its opening weekend.

The website's critical consensus reads, "Bad Samaritan delivers a handful of genre thrills — and a stellar central performance by David Tennant — that help offset iffy direction and a disappointingly mundane story.

[13] Variety's Peter Debruge gave the film a moderately positive review, saying, "producer-turned-director Dean Devlin...[delivers] a down-and-dirty quickie that's less ambitious in every sense yet ultimately far more effective as a piece of shamelessly manipulative, armrest-clutching genre entertainment.