Bury Me in Kern County.

A "Cops"-styled TV show tapes the arrest of a man charged with selling home made speed. His mother, seeing the broadcast, dies of a heart attack on the spot. His wife then decides to join with her drug addled sister and decide to rob a convenience store to get the money for the bond and for the funeral expenses. However, upon arriving they find the store already being robbed. Deciding to rob the robber, they give chase and end up killing him - only to find that it is the husband just released from jail. Events follow that places the two sisters at odds with each other.