"A drug addict and a devoutly religious woman, inextricably bound by individual tragedies, must overcome their respective addictions to find new meaning for their lives."

Like the contrast. Need to link the tragedies, so they share the same experience, not just the grief – maybe an overdose of a friend or family member. Casting Religion as an addiction is slippy slope!? 🙂

“Drug addict, Vince, is inextricably bound by tragedy with devoutly religious neighbour, Cathy. Their lives slowly merge, with both developing a new perspective on the meaning of life.”