Dream a Little Evil / Dream Demon (1990)

In Dream A Little Evil (1990), an unsuccessful electronics technician builds a machine in the shared home of he and his brother he later shows his friend who creates wishes from from their subconscious into reality. In Dream Demon (1988), a young woman about to be married begins having terrifying dreams about demons. When she wakes, however, the demons are real and begin to commit gruesome murders.