Insidious (2011)

Family moves into a new house and, almost immediately, their son goes into a comatose state and poltergeisty things start happening. They move, but son's still in a comatose state and things are still going bump in the night. And day.

This is just a jump scare-heavy, cheap-looking nothing. The only redeemable bit is Lin Shaye as a kind of ghost-hunters supernatural guide.

D+