“Murder RX” (*1/2 out of four) was a slapdash melodrama about a determined single mom (Ana Alexander) who moves to a small-town with her rebellious teenage daughter (Taylor Rouviere) trying to make a fresh start but don’t realize how overrun this town is with drugs, despair, and deep secrets. Film attempts to fuse a small-town drama with a meaningful statement about the current opioid epidemic and with a mother-daughter reconciliation story but its ambitions far exceed its ability. In dire need of some conviction and emotional power. For a far richer and more complex movie about the current drug epidemic, watch 2000’s “Traffic” instead.