A feeling of something being missing

Jamie wakes up one morning and realises that her girlfriend Sasha disappeared during the night. She tries to call Sasha, only to find out that her cell phone number has been deactivated and doesn't exist anymore, and when not even Sasha's own mother knows where she went, Jamie gets really worried. But soon she finds out that her neighbours might know more about disappearance then they want to tell, and that Sasha might not have been as great of a girlfriend as Jamie first thought.