Ghosthunters (2016) on Netflix

Plot summary

Neal, Henry, Jessica, Amy and Devon are a team of paranormal investigators. Amy is Neal's girlfriend, and Devon is Jessica's girlfriend. Henry lost his wife and daughter to a serial killer called the Night Stalker, who murdered them in a house the team has come to. Neal has built a device that captures ghosts and seals them inside containers. The team intends to use that device to capture the spirits of the two victims and free them, so that the pair can rest in peace. The further the investigators go into the house, the more hostile the ghosts become.