![](https://image.tmdb.org/t/p/w92/ePAjGAhynpwEI5HbpIrB28ML6lg.jpg)
American professor John Holden arrives in London for a conference on parapsychology only to discover that the colleague he was supposed to meet was killed in a freak accident the day before. It turns out that the …
Dana Andrews,
Peggy Cummins,
Niall MacGinnis,
Athene Seyler,
Liam Redmond,
Peter Elliott,
Ewan Roberts
Added on Amazon Prime 2020-12-30.