Unhinged — Barbra Leslie

Danny used to smoke crack cocaine. But two years ago her sister was murdered and Danny was flung into a wild chase across North America is pursuit of the murderer and his acolytes. Following a tumultuous stint in rehab, Danny and her family have finally found sanctuary: in a converted factory in downtown Toronto decked out in the most advanced security available. Danny is clean, running a gym, and finally free to enjoy quality time with her nephews.
But when the boys' father turns up one night, beaten to a pulp and with the name of a stripper on his lips, Danny is tangled into a series of secrets that will lead her to the final showdown and a discovery of the ultimate betrayal…