After a botched robbery, two incompetent thieves must avoid the authorities and elude a serial killer who they carjacked.

I love it. Would just change the last part - they can't elude the serial killer if they are all in the same car - maybe just reword this bit.

Looks interesting. One small thing - maybe save the best part til the end. That is the words "serial Killer"

Okay, will work on this more. Thank you