Grit Boettcher

Police try to track down a hooded serial killer who murders his victims with a combination of acid and poison gas. (imdb)

Several employees on a nobleman's estate show up at a former abbey, reputed to be haunted, to search for a hidden treasure. Howver, a mysterious hooded figure begins killing off those who may have figured out where the treasure is hidden. (imdb)

Father Brown brings back a stolen painting. Later he examines the mysterious death of a castle owner.