Tru Calling (2003)

Tru Davies, a medical grad student in Boston whose grant is suddenly pulled out from under her, takes a job at a local morgue. There, she discovers that she has the power to "re-live" the previous day over again to help the people who wrongly ended up dead. She uses this gift not only to save lives, but to help her trouble-plagued family - her older sister Meredith, a lawyer and drug addict in denial; and her younger, irresponsible, slacker, gambling brother Harrison.