I am at a loss as to why the argument isn’t being made that she take some time off because of her sister. Either her sister is missing, like she reported to the police, in which case she wouldn’t be working, or her sister was found ‘dead’, in which case she wouldn’t be working. Otherwise, how would they keep the perpetrator from knowing Caitlin is alive? Maybe the first few days could be disregarded, but eventually doesn’t she need to play her part?