'Obsession' Review: An innocent wish turns into a nightmare in a horror flick from talented up-and-comers

Have you ever had a mad crush on someone who didn't have feelings for you in return? Did you ever wish they loved you back?

Well, if "Obsession" teaches you anything, it's to be careful what you wish for.

The latest outing from the prolific horror production company BlumHouse follows Bear (Michael Johnston), who is absolutely smitten by longtime childhood friend Nikki (Inde Navarrette), both of whom work at a music store with their two friends Ian (Cooper Tomlinson) and Sarah (Megan Lawless).