AllMovie

Thanks to an unforseen mishap, the existence of "The Invisible Man" is revealed to the world. In his efforts to avoid the media, Peter Brady retreats to the countryside with his sister Diane (Lisa Daniely and niece Sally (Deborah Watling. Here the Bradys become enmeshed in the sinister schemes of John Norton (Derek Bond), who is planning to murder his wealthy wife (Faith Brook) and stepdaughter (Margaret McCourt) and abscond with the family fortune. Ultimately, the scurrilous Norton adds Diane and Sally to his list of intended victims--obliging Brady to once more use his invisibility to vanquish a villain.