Content in the tankoubon:
「逃亡急行」 - Toubou Kyuukou (Escape Express) (published in Petit comic, 05-07/2003)
Magazine reporter Natsumi comes across the scene of a murder and is captured by the youth who seems to have committed it. He insists he's innocent and the two go off to Switzerland together in pursuit of the real murderer!

「失踪都市」 - Shissou toshi (published in Petit comic, 01/1996)

「サルでもできるガーデニング」 - Sarudemo Dekiru Gardening

In the Bunkoban:
It has everything, but Sarudemo Dekiru Gardening, instead it has:

「死刑台の72時間」 - Shikeidai no 72-jikan - 72 hours of death stand (was also published in Umi ni Ochiru Tsubame)

「買って飲んであそんでデンマーク」 - Katte Nonde Asonde Denmark (Omake)