For seven years, Patrick Weru and his wife Perris Wangui have not taken a knock on the door or a push on their gate lightly.

Every knock raises their hopes of seeing their son Dennis Kariuki again.

Kariuki, now 37 years, disappeared in 2014. He is one of their four children who until his disappearance, was a casual laborer at the Mwea Irrigation Scheme.

The couple says every morning brings new hope of putting an end to the long, torturous days and nights of searching for their lost son.

During a visit to their home in Gichugu, Kirinyaga County, the couple narrated how they have unsuccessfully searched for the man everywhere they could think of.

Weru says they have visited all the police stations, prisons, hospitals, and mortuaries within the county, but there is no trace of him.

He says they have endured a lot, from unfulfilled promises from friends who pledged to help in the search to being turned away by law enforcers due to their persistence in seeking help to look for their son.

He worked for several rice farmers, meaning he would change houses from time to time depending on the profit and availability of the job in the paddy fields.

“He was married and has a son. His wife and child stayed with us in the same compound. He would often visit on weekends and we would spend quality time together,” Weru says.

All was okay until one weekend when Kariuki visited and found out that his wife of three years was not home. She had run away.

“He told us that his wife had expressed her dissatisfaction with their marriage and detested his drinking habits, threatening to pull out of the relationship.

After a month though, she returned home to pick up her son and belongings and moved to Nairobi,” the troubled father says.

The couple says Kariuki blamed them for allowing his wife to take his son to an unknown place within the city.

Weru says this marked the beginning of an unhealthy relationship between them and their son, who disappeared a few weeks later.

“Maybe he was extremely angered by our decision to allow our daughter-in-law take their son with her, and that’s why he ran away,” he said.

Weru also says some of their friends and relatives have since given up of helping them and have resulted in giving flimsy excuses to be excluded in the search.

“No one knows the pain of a child more than the mother. That’s why I'm filled with anxiety each passing day without knowing the whereabouts of my second son,” Wangui says. 

“We have visited police stations, but some officers offer no help. They dismiss us, telling us that he is of age and could be hustling in major cities, just like most of his age mates.”

Even as the years pass, the couple says they will not lose hope that Ariki will one day return home.

“Our lives have been full of sorrow. We want our son to know that we love him so much and cannot wait for his return. We deeply regret any pain we may have caused him that might have led to his disappearance," Wangui says.

Asked whether they are still in touch with their daughter-in-law, they said she often visits them in the company of their now teenage grandson.

Just like them, she has not heard from Kariuki for seven years. Judy Wanjiku, Kariuki's cousin, has called on the government to help them locate their lost relative.

“We have often tried to call his cell phone number, but it was received by a stranger whom we suspect was assigned the number because it was not in use for a long time.”

The family is pleading with Kenyans who may have seen Kariuki or know his whereabouts to contact his father Patrick Weru via 0727 342 317.