Two sisters living separate lives on different continents are reunited on a Mediterranean Island. The two barely have time to bond and revive family ties as Kate, the elder, meets a group of locals and agrees to an exciting ride on a hot air balloon. But disaster strikes and as the result of a freak accident, the balloon is carried far out to sea. Their cell phones out of range, and the balloon running out of gas, Kate and her friends are battling for their lives. While, back on land, the younger sister, Liz, has become an unwanted “material witness” to a crime. Matters then take a dramatic twist, one that will mark their lives forever.

When one of their own loses his wife and daughter at the hands of a serial killer, a team of ghost hunters is determined to capture the spirits of the loved ones so their spirits can finally rest in peace. But as the team goes deeper into the house, the ghosts become more hostile, and the group discovers the true secrets of the house and its murderer.