How hard is to find a new job when you are a plant scientist and the only local botanic garden gets closed? Nina cannot believe in her luck: Vladimir Shelekhov, the heir of a noble family and a well-known original, makes her an offer. She will have to replace a runaway gardener in his posh mansion. The mansion as also a museum, the site being visited by people from all over the country. Every Friday not only the garden, but the whole house and several rooms with historical setting is open for visitors. One Friday Nina witnesses the sudden death of the owner. The next Friday, during Shelekhov's funeral, the next mysterious death happens: his son gets poisoned. The next events do not leave a place for doubt: someone wants to destroy all the Shelekhovs. Nina will have to find out who stands behind the series of mysterious murders and attempts. What mystery has been kept by the owners of the mansion for many years and how was involved in it the missing gardener.